Have changed out MAF and keep getting code still, changed out ECM, O2 Sensor, what next???
According to my info, code 42 is a problem with the electronic spark timing control circuit.
The timing is controlled by the ignition module on most models. Depending on which engine you have it could be a problem with the module or the distributor. You would need to research the diagnostic process for the code for your car and engine.
Someone would need to get a shop manual or research the code online to get the diagnostic procedure. You check the pins of the wiring harness to and from the ignition module with a meter to find the problem.
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SOURCE: Upstream O2 sensor location?
That is the first sensor closest to the engine. The downstream sensor is the one behind the converter.
Good luck.
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SOURCE: Crankshaft Position Sensor
The crank sensor is on the front of your engine behind the harmonic balancer. You will need a balancer puller for a 3.8 and a crank sensor alignment tool to do this lob.
SOURCE: showing code p0135 and p1131
Replace the MAF sometimes cleaning it doesnt always do the trick
SOURCE: 2001 Firebird 3.8 misfires
Check your alternator see if you have a drop in voltage on your tack,then it is the problem.I too was a victim of high price tune up and still had a problem with a misfire.and cover your coil pack with a piece of rubber water run of onto your power pack .Another thing is to use a silicone spray on all wires.
SOURCE: Pontiac Bonneville 2003 oil pressure 120/// and maf sensor code
Replace oil pressure sensor. What is the code?
No the stalling is caused by something else like a dirty fuel filter of bad fuel pressure due to a worn fuel pump. With a bad O2 and MAF sensor the ECM will go a on open loop mose for those sensors causing bad performance and gasmileage. Replace the O2 sensor and try cleaning the MAF with MAF cleaner and check the wire harness, look for any damages to the wires and replace if needed. As for the stalling, try replacing the fuel filter first and we can go from there. Keep me posted, be glad to help get your car running 100% and save you some money the same time.
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I did change MAF, not clean it and still getting code, HELP what do I do Now LOL MAybe wiring harness from ECM to MAF???
I have changed ignition module, and have a new distributor, So what else could it be???? I think Im hopeless and almost broke lol
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