smgmn wrote
Would it be possible guys , if we could use this thread just for tech stuff ?
Let me start with a "Check Engine" light and driveability failure. It was a 2001 Nissan Sentra. It would misfire and die at idle. The consumer had already thrown a gang of parts, including the PCM at the vehicle in an attempt to rectify the problem. After hooking up the scanner, I knew exactly what was wrong. For those that don't know what A/F Alpha is, it's the fuel trim measurement. 100% is equal to 0% in OBDII terms, or 128 in GM Block Learn and Integrator terms.
I've posted this on another forum, so those that already know the answer, please let the other techs here show their diagnostic chops. When you answer, please give a reason for your diagnosis. I don't want to see, "It's the MAF", or "It's the IAC" without an explanation.
Why make it simple, when it will work equally as well complicated.