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when warm, O2 sensor takes over. AMM when cold. vac leaks...
Posted by JohnK (more from JohnK) on Thu, 30 Aug 2001 10:36:27
In Reply to: Rough start, idle, then fine, Orion, Wed, 29 Aug 2001 13:58:26
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will cause bad idle all the time,usually fast idle. When you start cold car, the O2 sensor has not had a chance to heat up and the AMM signal to ECU affects idle. Bad AMM best checked by swapping known good one. The meter can check out OK per manual tests for hot wire burn off, and still be bad. A rebuilt one is $140 from sobstory, a reliable site sponsor, nice folks.
Make sure that idle position switch on inside of throttle body is set right so that it clicks just off idle. Also clean out throttle body with carb spray and an old toothbrush. Clean AIC valve with carb cleaner and finish with a shot to WD40.
posted by 216.75....
Posts in this Thread:
- Rough start, idle, then fine, Orion, Wed, 29 Aug 2001 13:58:26
- when warm, O2 sensor takes over. AMM when cold. vac leaks..., JohnK, Thu, 30 Aug 2001 10:36:27 <-- Viewing This Message
- From a factory sevice manual, Doug
, Wed, 29 Aug 2001 18:21:28 - Re: Rough start, idle, then fine, Simon S, Wed, 29 Aug 2001 14:18:14
- Re: Rough start, idle, then fine, Simon S, Wed, 29 Aug 2001 14:07:29
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