My 2005 accord idles at 1500 when cold, then after I drive it for abt 10 mins idling speed drops to 750 the 500 then the engines stops running. What is causing this?
have the same problem?
Saturday, December 18th, 2010 AT 11:57 PM
The cold start idle at 1500 is normal and when the engine operating temperature increases, the IAC would reduce the amount of air getting to the intake manifold.
This process is controlled by the PCM ( engine computer ) and regulation of air is by the Idle Air Control ( IAC) valve. If the Check Engine Lamp is not indicating, the most likely cause would be dirty throttle body and IAC. Getting them cleaned should solve the problem.
Thursday, December 23rd, 2010 AT 12:51 PM
Did this fix your problem? I have a similar problem where the idle stays at 1500 until I come to a complete stop then it drops to 1000. Sometimes it will bounce up and down from a 1000 to 1200.
How complicated is cleaning the throttle body on a 2005 Accord? Is there any reference site I can look at?
Wednesday, January 19th, 2011 AT 6:30 PM
The simple way of cleaning the throttle body is with the aid of carb cleaner.
Keep ignition turned off while doing this.
Remove the air intake hoses.
Spray some carb cleaner into the throttle opening and the ports inside it. Allow to soak for a few minutes.
Repeat process and get a rag to wipe the inner barrel of the throttle body. You can manually push the throttle open and the main areas would be where the throttle plate is stopped at throttle fully closed position. Ensure they are clean.
Allow the carb cleaner to dry out and install air intake hoses.
Start engine and allow to warm up and note if idling speed stabilises.
Starting might be difficult due to the presence of carb cleaner and might stutter after it starts.