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Mazda CX-7 Smoke

slw5slw5 Posts: 19
edited September 2014 in Mazda
I've owned my fully loaded CX-7 since July 06. About a month after I got it the car began giving me problems. (First the turbo which has been upgraded everytime I complain).

The most frustrating thing about this car besides the turbo and the ridiculous 14 mpg is:

When driving and giving a bit more acceleration, the car sometimes makes metal clanging noises along with blowing black smoke out the exhaust (the car sometimes has a flat spot feel to it at the time). I was told it was gas ping when I knew it wasn't and to make sure I buy the most expensive premium gas and at the same gas station which is bologne.

Of course, the service dept could never duplicate the problem. It would happen when I least expected it to and not if I tried to make it do it. I've taken it back over and over and one fine day it did it again and I quickly went to service mad as heck. Finally, as I was driving at about 45 and added a bit more gas the car clanged and the black smoke appeared. The serviceman witnessed it all and said it was definitely not gas ping.

Well, I am apparently "red lined" in the repair system and the Mazda engineers are diligently working on this problem but this has gone on for months and months now with no fix for the problem. (Oh and this definitely had nothing to do with the recall)

Right now the only positive thing I have to say about my CX7 is that it is the hottest looking little SUV out there.

I've been more than patient but haven't heard a word from Mazda on a fix and every time it does it I am very disappointed in my choice to purchase a CX-7.

Is this a lemon law issue or have any of you had the problem and it has been resolved? :lemon:

Appreciate any input!!!!!


  • vbbuiltvbbuilt Posts: 498
    Make sure you document every visit, keep all receipts, and try to jot down the discussions. I'd also find another dealership, not related to the one you normally use. Get in touch with your states attorney general office and inquire about the lemon laws - they're different in every state.

    I don't have any technical advice for ya. Suffice to say, I've had mine a bit longer, just turned over 40K miles, and not a problem. That isn't meant to make you feel any better about your situation, but only to show that you have an abnormal situation. Most CX-7's have a little bug here and there, but seldom do we hear about a major issue, like yours.

    If you don't mind, I for one, would be interested, in hearing more about your situation as time goes by.

    Take care, Vince.
  • slw5slw5 Posts: 19

    Thanks for the reply. Of course, at first I was excited about my new purchase and thought the turbo was an easy fix and didn't keep the receipts or document any discussion. I do have several receipts now.

    The CX7 was an impulse buy. I had a perfectly good Toyota Sequoia that got 15.2 mpg and I thought the little car would get better gas mileage, would be more my size, and I knew nothing about a turbo at all. . . just a great looking car caught my eye and being the first to own one from our local dealership was exciting.

    I've had to learn to drive more cautiously. I make sure I press lightly on the gas from a stop so it will go easy and the turbo will kick in. It's my car so I know how it works, but my hubby steps on the gas like any other car and he's furious as it just sits there and then takes off. Several times we've thought we would be hit by another car because it didn't move. The turbo has been upgraded several times and it's improved a tad with each upgrade.

    One day I had to stop because of a stalled vehicle, I had time to maneuver around it, stepped on the gas and it just sat there, by the time it kicked in another car had moved into place and mine leaped forward and I had to slamn on the brakes to keep from hitting the other car.

    In a similar situation I went to manuever around a car, stepped on the gas and that darned clanging and black smoke appeared. This was the moment I charged into Mazda Service.

    Just really ruins the enjoyment of a great looking car. Will definitely keep you posted.

    Do you happen to know who to write to at Mazda? Is there an address for the president or something? I'll check with the California Attorney General. Didn't think of that. When I looked up lemon law online it took me to attorney websites and really no information.

    Thanks again for your reply and I'll keep you posted.
  • vbbuiltvbbuilt Posts: 498
    Try this website for more info:

    As for Mazda, trying to reach anyone at Mazda USA is an exercise in futility. Time and again, members in this forum have contacted them for one issue or another, and are always greeted with a polite, yet nebulous response. They're basically non responsive. Bring your husband and talk to the GM at your dealership. Tell him/her your story. Tell him about your dissatisfaction. Tell him you're looking into the Lemon Laws. Then see how he responds. If you're still dissatisfied with his response, then go to the Chamber of Commerce to lodge a complaint. Try the BBB, too.

    Good Luck! Vince.
  • gch523gch523 Posts: 2
    my wife and i got a cx-7 too. it was a dealer demo w/10k on it.back in June. then the black smoke started, back to Gorno Mazda (Michigan). when their mechanic finally showed up for work he looked at it. couldn't get it to smoke. tried to tell us we weren't using premium fuel. said that the clanging lifters and what smoke we (think we saw) is all normal. We then picked up the car. that was getting 18mpg . then started to only get 16mpg.why?? then the the black smoke showed back up.back to the dealer again. so then they can see the smoke now. so they order up a turbo. smoke now has stopped for now. but clanging noise is louder.. i could talk about it for hours butam not going to. not a happy customer.
  • vbbuiltvbbuilt Posts: 498
    About that clanging noise. Is it there ALL the time, or under certain conditions, such as acceleration, or turning. Does the noise stop and if so, when? Is it front or rear? Driver side or passenger?

    Reason I'm asking is that I took mine in for the 30K maintenance. Two days later, lots of nasty grinding and clanging from the front end. Took it back. Turns out the mechanic didn't put enough torque on the lug nuts on the front passenger wheel, after they had rotated the tires. The lug nuts started loosening and well, you get the picture. Told my shop adviser that was pretty poor on their part. They agreed. So, lesson learned. But I've never heard that noise before and no way of knowing it was for that cause.

  • slw5slw5 Posts: 19
    Thank God. I thought I was the only one and am tired of hearing that it's normal and I should buy the most expensive gas at the same station. Ridiculous!!!

    This is a great looking car but just a piece of XXXXX!!! My husband cusses at it everytime he gets in it. I've taken it back 4 times for this and the smoke and noise wasn't witnessed till October and I've been sitting here waiting for Mazda to figure out what wrong with it ever since.

    I can't duplicate the noise if I try and it doesn't happen all the time but I definitely feel it is related to the turbo because there is hesitation when it happens and then the clanging and then the smoke. It definitely is not predetonation ping.

    I too could go on for hours about this car. The dangerous situations we've been placed in because the car just sits there until it decides to move is ridiculous and now the clanging/smoke. I noticed there is another reply asking where I hear it. My noise seems to be from the rear. . . . it always startles me when it does it.

    We are thinking about pursuing the lemon law but we've never done anything like this before. I woke up this morning thinking I would write our General Manager at the Galpin Mazda here in Valencia, CA instead of my hubby marching in an complaining. He is trying to quit smoking so he should be just in the right frame of mind to blast them but not sure that is the approach we should take.

    It's a shame that such a great looking car has had trouble since about a month after we got it. I only have 12K on it and it's a year and half old.

    Has your dealership "red lined" you with Mazda corporate to find a fix for this? I think our guy said that there had been other complaints about this issue.

    All I can say is that I do not want this car. I shouldn't have to think about how my driving experience will be today. Will the noise happen and/or will I be put in a situation turning in front of traffic where my car will just sit there.

    Do you have really bad turbo lag with your car? They've upgraded my turbo many times via computer something and it improves a tad each time. We have been in several situations where we needed to react quickly and had just a dead spot and looked up to see cars barreling down on us thinking we would die. Oh, turbo lag is normal we were told.

    I too could go on for hours!!!!! Thanks for letting me know I'm not the only one.
  • gch523gch523 Posts: 2
    I LOVE EVERYTHING ABOUT MY CAR EXCEPT THE FACT THAT IT SOUNDS LIKE SOME OLD JALOPY !! It IDLES ROUGH !! and the gas mileage is very close to my YUKON XL !! , but with a lot LESS ROOM !!.
    They out right LIE about the gas mileage and its not fair that I am stuck with a 30k investment based on LIES , after all I was looking for better mileage at least I get 16.8 mpg ,about 270 miles to a 16 gallon tank , 160 miles are highway miles . Sorry but that is CRAP !! [ they claim 18 city and 24 freeway]
    The turbo lag is there, although I have never had a near death experience as you have thank GOD !! , and I hope I don't . I have made 4 trips back to the dealership since owning it , they have had my car for two months of the nine I have owned it ,always supplying me with a cheesy rental , and I am about feed up , I will be talking to an attorney about the lemon law .
  • slw5slw5 Posts: 19
    I love everything about it as well. I'm always so excited when I see it because it's an amazing looking vehicle, but then when it makes that darned noise or just sits there it makes me hate it.

    Thank God! There are others out there. I'd be happy with 16 mpg . . . .I get 14 mpg and buying premium gas sucks!!!

    Yesterday, I got on the California DMV website because I figured that was a more reputable website and emailed one of the lemon law attorneys they had listed and am awaiting an answer. I picked one that has an office in our town and had 20 years experience.

    I only wish I had saved all the receipts from when we first took it in about the turbo lag (I just thought it was a new car and they were working the bugs out of it . . . never dawned on me it was a real problem I would be dealing with for 18 months). The first near death experience was our introduction into turbo lag about a month after purchasing it (of course no one ever mentioned turbo lag during the sale). I drive only about 7 miles a day to and from work so it's not too bad but turning left in front of traffic causes me anxiety. I know how to lightly press on the gas so that it drives smoothly, but my hubby drives it like his truck and it just sits there. . . . no way can you just stomp on it to get out of the way of something or move fast if need be. But, why should I think about driving . . . it should be natural as it's always been. Step on the gas and it goes and we've never had a car that clangs like metal with black smoke blowing out the back.

    You'll have to keep me posted. I'll write more if, by some chance, I do have a lemon law case. Read all the info on lemon laws because the manufacturer pays the attorney fees. Apparently, a win is either getting the car replaced with the same model but the newer year or the price of the vehicle less a mileage differential.

    Not sure if it's important to keep your receipts proving that you use premium or not. Never dawned on me to do that but I plan on keeping them from now on just in case.

    We've never done anything like this before but it's worth a try. We've been sitting here since October waiting for Mazda to find a fix for our problem . . . meanwhile, I've put another 2,000 miles on it.

    I got to thinking that the Mazda 3 had more get up and go everytime I got it as a rental.

    Mazda uses turbos in all their Champ race cars and don't seem to have a problem with turbo lag . . . . . so I guess the new technology in an everyday car didn't work out so well. Obviously, there is something wrong with the turbo if they keep upgrading mine each time I take it in. It helps a tad at the time.

    I'll be checking back from time to time to see how your case is going and I'll continue to post my progress as well.
  • steverstever Posts: 52,462
    "The" State of California DMV website is They don't maintain a list of lemon law attorneys that I can find. I suspect you went to an unofficial "California DMV" site - that's fine, but the attorneys listed in those sites often pay an ad or referral fee.

    Check out the Lemon Law Questions discussion too.
  • slw5slw5 Posts: 19
    You're right. I went to the Unofficial Guide to California DMV

    I received a call today indicating that I have a strong case for lemon law. We are reading the "retainer" paperwork tonight and my husband has a few questions before I sign anything since the car is in my name.

    Thanks! it's so easy to go to the wrong place. I picked an attorney that has an office in the town that we live in even though the main office is in San Diego.

    I'll keep you posted on the progress.
  • If you're talking about when the CX-7 starts, and it idles high, it's normal.

    How fast are you going on the freeway?
    Seriously! You must be going 85-90.
  • slw5slw5 Posts: 19
    No, not from a start. It does it while driving and at various speeds (fast or slow) and not all the time . . it will go for weeks without doing it and then several days in a row (sometimes after a new tank of gas, morning, afternoon, on the freeway or driving down the road or on an incline).

    I was driving down a very low grade hill, had to put my brakes on because someone pulled out into my lane, I stepped on the gas to maneuver around the vehicle and . . . .turbo lag to the max and then that darned clanging/smoke thing happened. I stormed into Mazda again and finally the serviceman drove with me and witnessed it when I was driving about 45 mpg and gave it a tad more gas and . .. . metal clanging noise and black smoke out the back. He told me it was definitely not predetonation ping (gas ping) and he didn't know what it was so he was "redlining my vehicle" and contacting Mazda try to find a fix for it. . . . that was October.

    The serviceman was able to duplicate the problem the next day (thank heavens). Something is definitely wrong with it and I am now pursuing the lemon law. :lemon:

    I've complained about the really strong turbo lag and this issue since the first month we got the car and all I ever heard was that it was normal or we can't duplicate the problem. . . come in when it does it.
  • slw5slw5 Posts: 19

    Just thought I would keep you posted on the lemon law for my CX7. I did contact an attorney and they asked Mazda to repurchase the vehicle, pay my prorated registration and take off $2K for my mileage.

    Mazda's response is that they will NOT repurchase the car but will send a specialist out with the "fix" for the clanging/black smoke problem but insist that the turbo lag is normal. I am now faced with 2 choices and don't which way to go.

    My husband feels that their tinkering with the turbo to improve the lag is what may have ultimately caused the clanging/black smoke and that their fix may be to return the car to the default settings which will alleviate the clanging/smoke but make the turbo lag worse as it was in the beginning. I've been instructed not to drive the car so sharing and driving my husband's Tundra Double-cab remiinds me why I got rid of my Sequoia in the first place . . . . to drive a smaller car.

    Anyway, here are my 2 choices:

    #1. I can accept Mazda's offer to fix the problem (not the turbo), accept some money for my trouble as well as an extended 5 yr, 100,000 mile warranty.

    #2. I can go through litigation which will take months.

    I'm sure that the longer this plays out the more money the attorney makes off Mazda as they have to pay the attorney fees. It costs us nothing.

    Don't know if it's better to let them fix it and then turn around and sell it.

    I'll keep you posted on our decision. :lemon:
  • zoom49zoom49 Posts: 76

    I too have had the occasional noise and black smoke issue, mine happens only every other week on average. It does not seem related to fuel as I always use top tier (91 Cal) gas and if I let off the throttle and accelerate again I cannot reduplicate the issue. We do not have, nor never have had the issue with turbo lag. The swirl valve on ours was replaceed under recall, for our early 2007. It also happens in cool 60 degree as well as hot weather. Dealer has never been able to duplicate the problem, and neither can we as it happens so infrequently. Please let me know if Mazda finds out an answer.
    We love our CX-7 except for this occasional hickup.

  • slw5slw5 Posts: 19
    I'll keep you posted. My husband is out of town and wants to know what the fix actually is before we made a decision.

    Mine doesn't do it all the time either. There is no rhyme nor reason to it. The last time it did it, was able to duplicate it for the technician and he was able to duplicate it the next day I had just filled the tank with Techron Premium (I only use premium.) Was the type gas a factor, who knows!?!

    I think the CX7 is the greatest looking car on the market and it is totally fun to drive when it's behaving . . . . but in those instances where the margin of safety is compromised by the lag we hate it. This is the first car we purchased without me researching it to death so we had no clue about turbo lag and that it's normal and, of course, it was never mentioned during the sale.

    We are really in a quandry what to do. I'm afraid to make the wrong decision. Another thought is to just accept the deal with the money for my trouble and then turn around and sell it but that is such a losing proposition.
  • Hi, I bought my wife a 2007 CX-7 brand new in 2006, Yesterday 17 Feb 2008 I was driving her car and I noticed black and white smoke from the exhaust and heard a chain like noise like the noise a bicycle makes when you change gears. The car has about 12K miles on it and this is the first time we noticed the noise and smoke, since my wife drives pretty much in the dark. I took it to the dealer we bought it from and they first said they, could not find any problems except a few computer updates to the engine. I wasn't happy happy with the assessment, so they let it idol for a while and then saw and heard the problem. So now they are going to replace the Turbo. But they say it is safe to drive as is and when the parts come in they will fix it. We'll see. If anyone has a "fix" for their CX-7 Please let me know.
  • I guess I am with Vince on this one. I just turned 33K on mine and have only a few issues. I got the PCM recall work completed and I noticed that my black smoke has increased even at low RPMS. Usually when I am wanting to "clean" out my injectors at night I would see some smoke in another cars lights, but I saw it during the day. I do know that my car does not like any gas with Ethanol in it. Poor mileage results. Since the PCM work, my mileage has increased slightly. I used to run it in manual mode all the times due to the revs on the hi-way. SInce the work, I am able to keep in full auto all the time. I never had the CEL issue with the gas cap like so many others. Turbo lag is there and I knew it was an issue when I bought it.
    I wish the mileage would be better, but I hit the 20mpg mark two tankfuls ago. My driving habits would be considered spirited at best. BTW the CX-7 turns about 3100RMS at 119mph, so I do consider that spirited.
    I have not had a single probem with my car in the 19 months that I have owned it and I have not regretted my purchase especially when I am going through the mountains and pushing it to the limit.
  • slw5slw5 Posts: 19
    WOW, the offer of replacing the turbo hasn't presented itself. I was told that they didn't know what it was and that my car was "red lined" for Mazda engineers to find a fix. That was October.

    So, I entered into a lemon law case. . . Mazda has offered to fix it but not sure if they have a fix, will find a fix, will replace the turbo or what. We will find that out tonight.

    I'll definitely let you know when we find out what the fix is.
  • slw5slw5 Posts: 19
    20 mpg . . . . I'm impressed!!

    I drive 3.5 miles to work and back so my "Speedy Gonzales" driving only gets me 13 mpg at best. I assumed wrongly that buying a smaller car would get better gas mileage than my Toyota Sequoia.

    I've never used the manual mode but have been told by numerous people to use that in those emergency situations. Guess I need to just bite the bullet and try it.

    I haven't driven my CX7 in about 3 weeks as instructed so today was the first day back on the road since I had no other way to get to work. WOW, I forgot how zippy it is (spirited I guess). And, so much more fun driving than my husband's truck.
  • What emergency situations? I do know that the system might not be as good as a Ferrari, but would they tell that person not to use it? I did take my car down a steep hill and kept it in manual first gear so I would not lose control. As far as I am concerned the manual mode is there to still have a chance to pretend your driving a sports car. 3.5 miles is not a good test. I am lucky that I have a commute of 20 miles and 18 of that is on the highway so I am sure that helps my mileage considerably. I am sorry about the problems you are having with your car. It truly is a joy to drive on an everyday basis. My wife has an '07 Acura TSX that is fun to drive, but if I have a choice, we take the CX-7 on the road.
  • slw5slw5 Posts: 19
    First, what is PCM work that improved gas mileage?

    Emergency situations: when my margin of safety has been compromised due to the turbo lag.

    I do have to admit that the turbo lag has improved since they upgraded it but at first it was a scary situation I had never been placed in before. My husband has been in a few, what he calls "near death experiences" driving it and gets absolutely furious. Perhaps his non-enjoyment of the car is intensified because I got rid of a perfectly good paid off vehicle that he loved. I wanted something smaller and the Liquid Platinum CX7 is just the most amazing looking vehicles parked or on the road so I just purchased it without an ounce of research on it whatsoever (which is so unlike me).

    I was told not to drive it because I have been in a lemon law discussion which is still not resolved. Either take the offer Mazda put on the table or go to litigation. I'm hoping to resolve this within the next few days and get the clanging/knocking/smoke issue addressed. Then I'll be more happy with the car I'm sure.
  • The PCM work is a recall on some models. I am not exactly sure what it entailed. Yours might not be included due to the newness. I guess I have never put myuself into a "near death experience" situation. Your husband most likely did not drive the car all the time and would not know that there is a delay and expected when he hit the throttle it would go immediately.It doesn't, but when it does it is a true rush.

    I hope that you are happy with any situation that occurs with Mazda and please keep all of us informed.
  • Does anybody know if there was a determination on this issue? I just bought an '08 CX-7, it has 1,200 miles on it. I love the car, everything is great about it, except I have these issues. My wife was following me home one night and said it puffed out some smoke, and I noticed on the bottom of the mufflers some soot that wiped off really easily. I wondered why the car was smoking, figured maybe the turbo blows out extra exhaust when it engages. It was when I gunned the car that my wife saw the smoke.

    I've also heard a little mechanical noise from the car, sounds like it is under the hood to me. Nothing too alarming, sort of a rattling noise. I have no problems with turbo lag, performance is always great. I've only put 91 octane in it, always from Shell or 76 or Chevron.

    I thought it might have been a problem on the '07s, maybe not. Anybody have any info?
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  • slw5slw5 Posts: 19
    Mazda corporate, the dealership service manager, and the service person has been in touch with me making sure that I am aware of my appointment on Thursday and that they'll have a rental car ready for me . . . .Apparently, a Mazda Technician will inspect and fix my car. It continues to rattle/clang and blow black smoke out the back when I least expect it but always under acceleration at various speeds and could be on flat ground or an incline . . . no rhyme or reason and the smoke doesn't always happen or maybe I miss seeing it.

    I'll definitely let you know what the "fix" is. They didn't tell me if they had a fix or were going to try to fix it. Mazda is doing everything they can to make me happy with Mazda at this point. I will definitely let everyone know what they do to repair my car and if it worked. :sick:
  • slw5slw5 Posts: 19
    For those of you out there that responded regarding the awful clanging/rattle noise in the engine that resulted in black smoke that blows out the back on my CX7 . . . . I finally got it fixed by the Mazda Specialist that came to our local dealership.

    Keep in mind I was involved in the PCM recall that had to do with the light on the dash but that never fixed the problem.

    The special Mazda engineer had my car for 2 days. He had trouble duplicating the issue at first but our local dealership serviceman showed him what he did to make it to happen and HOORAY, they both got to experience it more than once. They put 50 miles on the car in their effort to duplicate it and some reprogramming.

    I had to bring all my keys for the repair which I thought was odd but now I understand they go hand in hand with the programming of the PCM. They put all new 2008 parts on it: Replaced the PCM and the Variable Timing Actuator, did reprograming of the PCM, decarb of the intake, and changed my oil.

    Of course, this is only a few days into the repair but it truly drives like brand new and is more responsive with less turbo lag.

    They gave me the Sport version of the CX7 for my rental and I felt so deprived of all my amenities. Can't tell you what a chore it was to use that switchblade key . . . just the mere fact of getting it out of my purse when I am so used to walking up to my car and just getting in was an effort). Gosh, and no back up camera or heated seats. I am so happy to have my very own car back . . . and gosh, it is such a great looking car!!!!!

    Anyway, I am a very happy CX7 owner now!!!!! :)
  • slw5slw5 Posts: 19

    I posted the outcome of my situation with Mazda but not sure if I replied to the thread so I thought I would email you separately since you were the first to contact me and you wanted to know the outcome :) . I am very happy with my outcome with Mazda and my car drives like a totally different car. Amazing!

    I finally got it fixed by the Mazda Specialist that came to our local dealership.

    Keep in mind I was involved in the PCM recall that had to do with the light on the dash but that never fixed the problem.

    The special Mazda engineer had my car for 2 days. He had trouble duplicating the issue at first but our local dealership serviceman showed him what he did to make it to happen and HOORAY, they both got to experience it more than once. They put 50 miles on the car in their effort to duplicate it and some reprogramming.

    I had to bring all my keys for the repair which I thought was odd but now I understand they go hand in hand with the programming of the PCM. They put all new 2008 parts on it: Replaced the PCM and the Variable Timing Actuator, did reprograming of the PCM, decarb of the intake, and changed my oil.

    Of course, this is only a few days into the repair but it truly drives like brand new and is more responsive with less turbo lag.

    They gave me the Sport version of the CX7 for my rental and I felt so deprived of all my amenities. Can't tell you what a chore it was to use that switchblade key . . . just the mere fact of getting it out of my purse when I am so used to walking up to my car and just getting in was an effort). Gosh, and no back up camera or heated seats. I am so happy to have my very own car back . . . and gosh, it is such a great looking car!!!!!

    Anyway, I am a very happy CX7 owner now!!!!! :)
  • dmele426dmele426 Posts: 33
    i have not heard the noise from the engine that most people describe. However, i just started to realize that my tail pipes are black. I cleaned them for the 1st time yesterday and I am keeping tabs on how long before they get black.
    is too much of the black stuff mean that my gas is not being burnt efficiently??
    do i need to mention it to the dealer?
    i have 5k miles on my car, 2nd oil change was done today. any adivse?
  • slw5slw5 Posts: 19
    I never checked my pipes.

    My biggest complaint was the rattle/clanging noise which resulted in black smoke blowing out the pipes and, of course, the turbo lag. My car was purchased June 2006 so it was one of the early ones sold and I complained about it since the first month I owned it. I now have all new 2008 parts and it runs great. New PCM, actuator, and they did a decarb of the intake I think and an oil change. They never told me what was really wrong with it but I assume my gas was not being burnt efficiently either.

    I did notice that the noise/smoke was worst if I used Techron gas during the issue but I've put it in since and the car continues to run amazing. It has a tighter feel if that makes sense and it shifts smoother and I haven't heard the noise once

    It is like driving a completely different car now. I am so happy to get in it every morning and zip around town to work. Not very far but I'm having fun again. :)

    Have they done a PCM reflash? They did that to mine months ago and it didn't help but since yours in newer maybe it would help.

    good luck!
  • zoom_utezoom_ute Posts: 13
    glad they fixed the variable timing actuator, I was going to suggest that (or the wastegate actuator for the turbo). These can be common defects on turbo cars.

    Sooty tailpipes are also common on turbo cars, when under boost they run richer air-fuel mixtures than non-turbo design, they use excess fuel to cool the combustion process to prevent pinging/detonation.
This discussion has been closed.