1997 993 stalling problem

[Rick Cabell]

I took the 993 out for the first time in a month. Right off the bat it stalled at the first traffic light. Then again every time I came to a stop. It would only stay running if I kept my right heel on the throttle as I came to a stop. It would start right back up, and idle pretty good. It's on a deceleration stop and you push the clutch in as you come to a hault. NO check engine light is on. This went on for about a 25 miles road trip. Any thoughts?

[Don Plumley]

Clean your ICV (Idle Control Valve)?

Do you have a LWF? If so, leave the AC on to raise the idle.

[Rick Cabell]

Haven't touched anything yet. What is a LWF ?

[Bill Verburg]

Originally Posted by Rick Cabell

Haven't touched anything yet. What is a LWF ?

single mass 'light weight flywheel' as opposed to the stock dual mass and very heavy flywheel.

I agree w/ Don, clean the ICV, it's easy enough to do. also check for vacuum leaks, I had one on the '95 engines that would cause the stalling you describe but only when AC was on. Repaired the leak and never had another problem.

O sensors can cause cold stalling but that doesn't sound like your issue.

[Paul K]

I replied to your identical Rennlist post but again...

Have you disconnected your battery recently?

That might be the cause. I just went through the same thing and it was caused by my having disconnected the battery. The good news is that it'll fix itself if so.

Paul.

[Rick Cabell]

Matter of fact, yes, it was right after I took the battery out for a full recharge and re installed it. I'll check the other ideas also, Thanks guys.

[jimz993]

1+ on ISV.

But be very careful when cleaning it, you can damage the electric component inside. If that happens get ready to buy a new one!!

It happened to me!!!

[Paul K]

Rick:

If the problem was caused by disconnecting the battery, you need to drive car car so it can 're-set' its self. Worked for me!

Paul.