Question about 1991 Acura Legend
At cold startup the idle revs up and down between 1000 and 2000 rpm for about 5 minutes. When the car warms up it goes down and runs normally.
No check engine light? You have a couple of sensors that may be causing that, coolant temperature, incoming air temperature sensor to name 2 of them. Personally I'd have it put on a scan tool & remove the guess work. Some parts places will do it for free, well as long as you buy the parts there.
Posted on Jan 16, 2009
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Posted on Jan 02, 2017
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