TeGGeR® wrote:
> jim beam <nospam@example.net> wrote in
> news:SZydnfSTOcwJ3YPeRVn-sQ@speakeasy.net:
>
>
>>00civic wrote:
>>
>>>I have a 2000 honda civic LX and yesterday i noticed my car was
>>>idling at about 200rpms when normal idle is about 900rpms.when cold
>>>it idles ate 1100rpms then goes down to 200 when it's warm, i also
>>>noticed when the fans kick in the rpms go up to about 600rpms then
>>>drops back down.i have a haynes manual and it suggests the IAC valve,
>>>is there anything else that could cause this.
>>>
>>
>>the gauge only goes down to 500rpm, so it's unlikely you tell if the
>>motor's idling at 200. normal is supposed to be 750.
>>
>>
>
>
>
> I'll bet he's actually idling at 650.
>
> 1) Dirty throttle body
> 2) Dirty/defective IAC.
> 3) Idle speed screw adjusted incorectly.
>
i'm always reluctant to recommend adjusting the idle screw because if
all the other stuff is working right, you never need to go near it.