ElectronicsNeed help wiring something up? Thinking of adding an electrical component to your car? Need help troubleshooting that wiring glitch?
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I have a 86 trans am 305 tpi. It throws codes 32, 33, 36. and sometimes 42 and 43. I have replaced the egr valve, tested the soleniod, replaced vac lines, and basically everything i have researched on here. nothing worked for any of those codes (I've had this problem since i got the car almost a year ago and cant get it) SO, i pulled out my meter and began testing electrical (fairly new at electrical so bare with me), this is where i need your guys help I found a pinout of all the wires that go to my computer and a pretty decent schematic of the engine bay wiring? but my question to you guys is, did i do the tests all right? i got it down to a bad ecm and possibly a knock sensor. i posted up a picture of my pinout paper with my readings with what i thought was all related to my problems. I have power everywhere for the MAF all the way up to the ECM. The relays have all been checked, they open and have good voltage coming through them, and the voltage seems to make it all the way to the ecm from the maf, which lead me to believe it is the ecm? Also about the EGR problem i believe it may be something to do with the EGR temp. switch? according to the amount of voltage from it at the ecm, but i dont know where to find that on the engine. And as for the 42 and 43 codes, i tried the unplugging the knock sensor trick to see if it ran any better and it did seem to....until that code 33 popped in and my car ran like crap again heh.
So please, i know this was a long post, but i've tried really hard to get all my facts straight before coming back to you guys. Im extremely motivated to finally put an end to this annoying problem! any input is greatly appreciated! thanks so much in advance!!!
jon
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I found a pinout of all the wires that go to my computer and a pretty decent schematic of the engine bay wiring? but my question to you guys is, did i do the tests all right? i got it down to a bad ecm and possibly a knock sensor. i posted up a picture of my pinout paper with my readings with what i thought was all related to my problems. I have power everywhere for the MAF all the way up to the ECM. The relays have all been checked, they open and have good voltage coming through them, and the voltage seems to make it all the way to the ecm from the maf, which lead me to believe it is the ecm? Also about the EGR problem i believe it may be something to do with the EGR temp. switch? according to the amount of voltage from it at the ecm, but i dont know where to find that on the engine. And as for the 42 and 43 codes, i tried the unplugging the knock sensor trick to see if it ran any better and it did seem to....until that code 33 popped in and my car ran like crap again heh.
