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1994 Honda Accord Question: it revs up and down at a idle,driving down the road at a stalled speed it revs

 

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dbaby, 2.2L 4 Cylinder, Destrehan, LA, July 25, 2012, 13:25
 Rookie

up and down. i changed the spark plugs,wires,cap,rotor,pulled the throttle body of and cleaned it, changed the tpi sensor. do u have any other idea what it could b?

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  • Answer #1

    July 25, 2012, 19:41
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     Technician

    I would recommend cleaning out the IACV and FITV valves. Vacuum leaks specially can cause a surging idle yet I found in my Honda that cleaning out both of these valves solved the problem.

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  • Answer #2

    July 29, 2012, 21:25
     Master

    Coolant level correct?

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  • Answer #3

    August 03, 2012, 13:55
     Rookie

    Change the egr valve and make sure your plugs are gapped correctly. Check your owners manuel for the correct gap

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