Do you have an ODB2 scanner capable of graphing PID's? If you did it might make short work of your of your problem.
Graph:
- Short term fuel trim (STFT) bank 1 and 2
- fuel pressure
- MAF flow.
- EGR flow (DPFE)
- timing advance
Drive the car through several turns. Look for the PID's that change in an unexpected ways.
ForScan ODB2 scanner w ELM327 USB
While working on your car have you ever wanted: to find an ODB2 operational PID value (say fuel pressure or MAF)? How about graph a PID value over time? Or compare multiple PID's over time? Access a bi-directional PCM control such as test a...
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