i'm having a problem with my accord. 2000 lx sedan. it's idling very low and sometimes it shuts down on me also. pretty strange... any clues? no check engine lights by the way.

 

I suspect the Idle Air Control Motor (IACM) or also known as the Idle Air Control Valve (IACV). It may be either dirty, lazy or has developed an internal vacuum leak.
This would also be a good time to perform a Throttle Body Service, and check the PCV system for proper function.

P

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by P_Adams &raquo;</TD></TR><TR><TD CLASS="quote">
This would also be a good time to perform a Throttle Body Service, and check the PCV system for proper function.
P</TD></TR></TABLE>

could you be a little more specific please. thanks... not sure of what i'm supposed to be doing.

 

One of the byproducts of the pcv system is a vapor (mist) which collects injested dust onto things such as the throttlebody butterfly valve and the IACM's Pindle valve (Tapered cone, orifice) and can adversly affect not only idle speed but idle quality and transition (hesitation off line) from this crud accumilating.
Unlike carburetors of old, The base idle on a EFI Throttlebody is NOT set based on a set screw. Rather it is set by an interplay between a Tach signal, the ECM and the IACM. The ECM trys to maintain a constant 750 rpm, both in neutral and drive, by commanding the IACM to either open (let more air pass, and raise rpm) or close (restrict air from passing, lowering rpm).
The problem arises when either the valve portion of the IACM becomes crudded up or suffers an electrical failure.

I would suggest getting a couple of cans of spray carburetor cleaner and liberally spray down the inside bore of the throttke body, paying particular attention to where the bore and the butterfly valve meet.

Try that first
P

Editted b'cuz the $#%@& Spell Checker wasn't working. Yeh, just like the "Search" hasn't been working either.


Modified by P_Adams at 11:45 PM 11/14/2005

 

gotcha...

 

Let me know how it turned out, we may have to get a little more elaborate in our diagnosis.

P

 

alright... will do... but i cannot do until tonight. need to get off work before anything.