I dont even know how to describe the problem. When I start my 2000 Accord in the mornings, it is fine. When I begin accellerating and then come to a stop sign, the RPMs shoot to 0. In other words, when i push the brakes to my car to STOP it, the RPMs drop faster than usual. Can somebody tell me why?? I just changed the cruise control cable, thinking it was going to fix the prob. Thank YOU! Cristina
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As a first course of action I strongly suggest that you have the car scanned to know the fault and the fix. But the common issue why the car has erratic idle is because of a faulty MAF sensor. You may need to replace it to resolve the problem.
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Clean your fast idle thermo valve (fitv) if that dont Work try cleaning idle Air control valve (iacv) you can go to google images to see where they are located on the intake manifold if you dont know And also if you dont know you can search google on how to clean these parts. Slightly dirty fitv was my problem cleaned it no prob. Since.
air in the IACV (idle air control valve) coolant line - air bubbles in the coolant will confuse the iacv into incorrect idle settings.....even when hot, and a fault in this unit will do the same thing, very very common fault in a honda.
Well there are test procedures for all of them but takes time and knowledge of how to test. Do you know how to use a ohm meter? Is your service engine light on? I would bet more on Mass airflow sensor then anything because of what you are saying but could be any one of these items.
Well for the person in florida, if you have high idle even when it's warm out then that may be that there is carbon build up on the throttle body/throttle plate and it's causing some hight idle which is known to happen a lot on older toyota's especially. If u open the throttle plate and spray carb cleaner in there and wipe away the carbon deposits with a rag and make that area shiny u may see a difference.... As for the other person in Indianapolis, if you're having the problem during the winter then that is probably the IAC (Idle Air Control) valve which is connected to the intake manifold. If this gets build up of carbon and starts to make the valves stick in that IAC it could cause some irragular idle problems like as u described. I had a very similar problem in my 92 Acura Integra and I replaced the IAC and the problem went away, but i also know that u can sometimes spray inside the IAC with brake clean or carb clean and u may sometimes be able to free up the valves and fix the situation and be fine for a while, tho it may not be a perminate fix; however u will at least know for sure that was the problem..hope this helps u both, good luck