I have a 1992 Honda Civic and when it ideals, it revs up and down. I have replaced the idle air control valve and the air temperature sensor, and the computer is also throwing code for both still. Could it be the computer? Fuel pump maybe? Where do I go We also ran Sea foam through the vacuum system and 2 bottles of heat through the gas tank and ran it at 3000 rpms for 30 minutes. I've changed the battery, fuel filter, air temperature sensor, 02 sensor, and the air ideal control valve
have the same problem?
Friday, May 11th, 2012 AT 7:43 AM