Howdy, Stranger!

It looks like you're new here. If you want to get involved, click one of these buttons!





Did you get a great deal? Let us know in the Values & Prices Paid section!
Have you recently used your tax refund (or are you planning on using your tax refund) toward the payment of a new or used vehicle? Or, are you planning on using your tax refund toward any expenses related to your car?
If so, a reporter would like to talk to you. Please reach out to [email protected] by Friday, January 25 and the Edmunds PR team may connect you with the journalist.

Are you the parent of a generation Z child (born in the mid-1990s to the early 2000s)? Do you have differing opinions on the importance of buying a car, what types of vehicles you're interested in, or just how you view cars in general? If so, a reporter would like to speak with you and your child. Please reach out to [email protected] by Friday, January 25 and the Edmunds PR team may connect you with the journalist.

Misfire

jenifersjenifers Posts: 2
edited July 2015 in Chevrolet
van broke down recently. It was throwing codes, PO303 for cylinder 3 misfire and PO141 O2 sensor. Just took it to chevy garage today and they told me they "think" its a fuel injector. # 3 plug is bone dry. They want 500 bucks to replace fuel injector. Van has a misfire but will run.

Comments

  • Sounds like a bad injector, the O2 sensor. code should go away after you replace the injector. Call around, $500 sounds a little steep for a small job like this.
  • thecardoc3thecardoc3 Posts: 4,836

    Sounds like a bad injector, the O2 sensor. code should go away after you replace the injector. Call around, $500 sounds a little steep for a small job like this.

    Small job? I suspect you have never done this repair yourself. The flat rate time is 3.8hrs for one injector, and 4.2 for all of them. The upper intake manifold has to be removed for access and that's not a lot of fun on a Venture Van. In fact that's probably why there is some doubt as to what has failed at the point that the O.P. wrote in and asked for help. The injectors share power inputs but all have their own ground command circuits at the PCM. With most of them being triggered, that confirms that power is available to that splice in the harness, but nothing else on the engine side can be determined without removing the upper intake. It "could be" that an injector that has failed open or it could be a harness or connector issue. The only thing that could be proven right now is whether the PCM could command that injector to fire if the rest of the circuit was intact.
Sign In or Register to comment.