Quote:
Originally Posted by Sigh-on-Rice
I've read in a Japanese message board that Toyota admits the idling RPM going up and down when the compressor goes on and off is abnormal. They fix it by updating/replacing ECU. I really wish there is better communication between Japan and U.S., so that we don't get response like "We can't do anything unless the CEL comes on".
Note: This is not abour RPM going between 630-680. That's normal. It's about RPM going 500-800 and when it drops to 500, I can feel a little bit of shake.
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Mine does the 500-800 thing even when the AC is off.