How to test IAC and throttle body sensors...
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Joined: Apr 2014
Posts: 297
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To reset the PCM, just disconnect the battery for five or ten minutes.
If it maintains a higher idle when cold, and gradually comes down as the engine warms, or, immediately comes down if the engine is already warm, things are working as they should, and I wouldn't worry about it.
If you are stalling when putting into gear, or changing direction of travel, that is a problem..... Mine sometimes does that when it is cold out, but, now, in the warmer weather, it seems to be running just fine..... See if the problem repeats itself when it gets cold again. (not in a hurry for that....)
If it maintains a higher idle when cold, and gradually comes down as the engine warms, or, immediately comes down if the engine is already warm, things are working as they should, and I wouldn't worry about it.
If you are stalling when putting into gear, or changing direction of travel, that is a problem..... Mine sometimes does that when it is cold out, but, now, in the warmer weather, it seems to be running just fine..... See if the problem repeats itself when it gets cold again. (not in a hurry for that....)
