Quote:
Originally Posted by Airjer_
I would think that what is happening is the vehicle goes into open loop when it sees an input failure. You unplug the TPS and the computer goes into open loop. Essential running on preprogrammed strategies and not using any sensor input (exept those absolutely vital to keeping the engine running). Once you plug in the TPS the computer sees the input and goes back into closed loop. Closed loop strategy uses inputs from various sensors to determine fuel and spark.
Does that sound right to anybody else?
I'm still thinking along the lines of a vacuum leak (leaking intakes are pretty common on these) but Somthing else occured to me. Wouldn't a bad MAP sensor cause a start and stall also? If you unplug the MAP what happens? The same thing as unplugging the TPS?
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I agree with you, if you unplug it how is the comp supposed to know driver input. I would also being looking for vacuum leak, or intake. Could also be a skewed iac motor.