127044, RE: 420a problems
Posted by CODE4, Dec-31-69 06:00 PM
The IAC is a stepper motor connected to a pintle that basically controls a vacuum leak. True, it does control warmup and high idle during low speed steering, A/C etc.
The TPS adjusts the 5 volt signal coming from ECU to tell it how far the plate is opened. What are you suggesting happens after 10 minutes (or so) that the TPS kills the idle?
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