Misfire - '88 TC
My car began misfiring at idle and lower RPM's. Revved up and in the boost it appeared as if the miss would disappear.
I started with changing the spark plugs (gap .028 to .03), new wires, cap & rotor. Ran better, but misfire was still present. Borrowed a smoke machine to check for vacuum leaks and nothing present.
Ran Codes:
10 System Check
11 Pass Code
14 Ignition Profile Pickup Circuit Failure (PIP)
41 O2 code for out of range or low voltage (makes sense with misfire)
I was under the impression if the PIP has a problem, starting the car becomes difficult or impossible?
Could this be simply the PIP going bad?
Side note, a week before this happened my daughter turned 16 y.o. and I was giving lessons with the 'Bird since she claims it is her's when I sell. She needs some more lessons and how to control the gas pedal without hitting the redline. Kinda wish i put the MSD in with the rpm limit.
![](https://i.imgur.com/XTANyPxm.jpg)
![](https://i.imgur.com/L70kStrm.jpg)