Quote:
Originally Posted by C3H8
have messed with a potentiometer on my tps. it didn't change my air-fuel ratio's at all, but it did change my ignition timing, if i tricked the computer into thinking the throttle was closed more then it really was. the timing went up a few degrees. it also lowered the rpm's at which the transmission shifted. the torque converter stayed locked up more, and the engine went into open loop under acceleration a lot less (almost never). all good things for FE.
if i went too far though, the engine would surge and lope and a CEL was triggered, so i adjusted it for best economy at 50mph, and took the pot out and replaced it with a perminant resistor.
|
What was the difference between the messing about with the TPS and just pressing the pedal less ?
BTW given previous comments and my own earlier comment about the temp sensor I would like to say this is a genuine question.
Ta.
