FartSmeller wrote:
> '96 Civic DX coupe D16Y7 engine.
>
> When started cold the idle fluctuates from fast (what seems a normal fast
> idle) to slow (almost stalling.) It straightens out after a minute or so
> and then idles fine.
>
> I removed the throttle body and gave it a thorough cleaning with tb cleaner.
> I also removed the Idle Air Control valve from the tb and cleaned it.
> Although the car ran slightly better, the idle problem is still there.
>
> I'm suspecting a faulty Idle Air Control valve but I wanted proof before I
> plunk down $150 for the parts. So...I followed the procedure in the service
> manual to jump the service connector and watch for codes blinked through the
> check engine light. Nothing! When the service connector is jumped the check
> engine light stays on solid - does this mean there are no codes being thrown
> or does it mean something else?
>
> I also want to check for vacuum leaks. Anyone have any tricks to share on
> this.
>
> Thanks in advance for replies.
> ===================

First thing to verify is coolant level in rad and reservoir, then remove
air at the bleeder, if so equipped.

Knowing the mileage helps narrow the clues too.

'Curly'