SOURCE: turn on aircon my idle down zero.
Yes there could be a problem with the IAV valve. What happen's is the screen get's clogged up with carbon all you need to do is pull the valve off and clean the screen see if that help's.
SOURCE: 93 Honda accord - idle real low (500 rpm) HELP, please!!
near the throttle body there is an adjusting screw(flat head) for air fuel mixture, it's on a deep cavity sometimes with a cover, adjust counterclockwise will increase the idle.
SOURCE: Car is shaking at idle and then 60 mph
BAD SPARK PLUGS AND WIRES DIRTY FUEL INJECTORS AND STOPPED UP FUEL FILTER OR WEAK FUEL PUMP WILL CAUSE ENGINE TO SURGE.
SOURCE: honda accord ex 2001 check engine light suddenly came on, car started to idle roughly
If it's running rough, chances are that it's misfiring. If the Check Engine light is flashing/blinking, it is definitely misfiring.
If that's the case, drive it as little as possible... Or straight to the mechanic because the more you drive it while it's misfiring, the higher the chance is of you ruining your catalytic converter.
I’m happy to help further over the phone at https://www.6ya.com/expert/jason_00b31cc8f593773a
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