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When we tested the plug wires for spark we get none, we tested the black and orange wire going into the ICM and got 12 volts, we tested the other wire coming out of ICM and got nothing.
The mechanic said he had to replace the main fuse in the engine compartment because it had blown. I asked what made it go bad and he said he did not know.
So now I am wondering if there was some type of power surge inside my engine compartment and if it may have caused other electric components to fry.
What causes an ICM to go bad? Can it be affected if the main fuse blows?
Can the starter be the culprit of a power surge that would affect the ICM?
I really don't think the starter had anything to do with the lack of spark at the plugs but I would love to have someone who knows better help me out with these questions.
Thanks so much in advance!!
I played with my fuse box and it just started working normally again.
Also look at you engine compartment ground wires and make sure they are all in good shape.
So here is what I know:
Gas Gauge.... its NOT the sender, that's been tested good, its also not the ECM, its something in the wiring. The gauge reads empty constantly, never moves and the low fuel light just blinks over and over. The car is throwing a code, says something about +5v to the sender is faulty. I found the two wires going to the ECM from the sender, if you short them, the gauge starts to move, but the wires begin to get hot, so I dpont know what that means. As I understand it, if the SU wire is grounded, the gauge should read full, if its open it should read empty, so my thought is I have broken wire somewhere, but I have no idea where to look! (yes, the connector on the tank is fine) What should both wires read when the car is running? (in relation to the ground)
Second issue is the Fog lights.... I replaced both bulbs, made sure the connections were good, but the fog lights don't work at all (I know the low beams have to be on for them to work) I located a fog light relay in the hood fuse block and checked the fuses, all seem to be good. what am I missing?
1- voltage for the past 2 years has been up and down but no problems with car.
2- past year fuse pops when lights on and hit a bump while turning.
after fuse pops all dash lights gone and tail light gone but brake lights work fine.
3- past 2 months car is dead and will only run a short time (like 5-10sec) then dies.
fuel pump good - preasuse good (had it tested)- new batt. - new belts- new timeing belt as well-
i am at a loss here as to what to try next. i will start by trying to find the grounds that people have stated as my starting point.
thanks for your help if you reply.
Paul
i have tried replacing battery the altonator tests good
Thanks
steve