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kiki 10/11/2012
1999 Honda Passport LX 6Cyl3.2L - Engine
Why is my engine suddenly idling very high after putting in a new battery?
It normally idles around 750-800 in drive & 950-1000 in park or neutral. Now it's just under 1500 in drive, 2000-2500 in park or neutral!
1 Answer
  • Bill
    Bill 10/12/2012
    See if idle comes down after starting and idling 5 minutes. As engine coolant warms ECU senses it and adjusts the idle down. Let us know.
    Bill 10/12/2012
    The ECU probably needs to recalibrate itself.

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