TPS Circuit fault in ECU.

[gloverman]

I've been thinking I should do a few videos about diagnosing faults for a while so heres's one of the first. It was after I got the engine running and sorted oil pressure. I did a video on the oil pressure issue too.

 

[George_R]

I've seen a couple ecus where the described fault was ECU fault indeed : processor pin that actually measured voltage was burnt somehow. I fitted the processor (strictly out of interest) from other model ECU and it worked. TPS/APPS input circuits have close to zero protection, so I believe some welding works done to the car can easily destroy them.