Originally Posted by tn96dc
Is it possible to have a faulty APP (Accelerator Pedal Position) sensor and not trigger the MIL or any codes?? I'm having symptoms like a faulty APP sensor on my 2002 GS300. Any input would be great!
With certainty I can tell you codes may not be thrown with faulty APPS or TCM. I had it happen with both at different times. No codes, but the dreaded limp mode to point of almost causing me to get killed. I checked the sensors with a multi meter and narrowed it down each time to what it was. The TCM sensor hangs right above the manifold on a little bracket. It is exposed to a lot of heat and I'm sure that is causing failure over time. I have replaced 2 of those during the life of the car. It has beeing running like new the past year with zero issues. 140k on it. 2002 sports design GS300 Graphite Gray Pearl