Question about Honda Accord
Okay, then you might have 2 separate problems. The cold fast idle and idle fluctuation is usually caused by a fast idle valve that is leaking or out of adjustment. You can adjust this by removing the cover of the fast idle valve, and turning the white slotted bypass valve seat. You must do this when the engine is cold. The fast idle valve is the one on the right on the front of the intake plenum. It is situated vertically, and the cover is round with two screws. The other valve is the idle air control valve.
The code 1 is almost surely a bad O2 sensor. You can do the fast idle adjustment first to see if it makes a difference, but I doubt it will.
Warm idle with no load, lights, fan, etc. should be 700 +/- 50 rpm. Idle speed with a load should be 770 +/- 50 rpm. Cold fast idle should be between 1000-2000 rpm
Even before the belt is about to break this problem may arise . So please check your belt condition
Posted on Sep 09, 2009
Check for the accelerator pedal if it not block
Posted on Sep 08, 2009
This issue could be caused by any of a large number of issues. Could be a thermostat problem, I've seen faulty thermostats cause exactly what you describe, upon replacement it's good as new. Could be a timing belt issue, when was the last time you replaced the timing belt?
Actually, the most likely one would be a vacuum leak in the system somewhere since you say it whistles... If you are extremely mechanically inclined check all the piping for a leak... it may be easier just to have someone who works on Hondas take a look at it.
Thanks, let me know
Posted on Sep 08, 2009
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Posted on Jan 02, 2017
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