# Throttle Position Sensor failure I think...

Posted by Uncle Pete (89 SE) on June 26, 2002 at 04:52:03:

In Reply to: It's getting worse...wtf? posted by blackandwhite on June 26, 2002 at 02:02:04:

The 2250 is really ringing bells, but I don't have my FSM to hand. I'm sure it's something along the lines that when the TPS fails the ECU falls back onto one of the other senses to approximate mixtures and stuff. It also imposes a rev limit of 2250 because it's a 'limp home' failsafe mode. I could be wrong but try checking an FSM for confirmation.

Replys:

- Got my FSM now - it's the MAF sensor... Uncle Pete (89 SE) 12:13:06 6/26/2002 (0)

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: The 2250 is really ringing bells, but I don't have my FSM to hand. I'm sure it's something along the lines that when the TPS fails the ECU falls back onto one of the other senses to approximate mixtures and stuff. It also imposes a rev limit of 2250 because it's a 'limp home' failsafe mode. I could be wrong but try checking an FSM for confirmation.