Car trouble (1994 toyota supra)

[Whipper Snapper]

Originally Posted by SvilleKid

Question: Do you remember the weather when it started acting up? reason I ask, I've just decided the mis-fire I'm getting periodically in my truck is rain related. I'm thinking I have a stopped-up drain below my windshield that is allowing rain water to overflow, filling the spark-plug well with water, and drowning out that plug wire. That misfire results in heavy gas smell in the exhaust, bad gas mileage, rough running. But several days later, with dry weather, it straightens up completely.

Possible you are having something similar??

It was dry outside I believe.
Also dry outside today when I went driving.

No black smoke. No power loss.
However, the idle is severely low when at a stand still and the car will die. Even when I'm braking, the car will die if I don't keep my foot on the accelerator. This of course is a problem, as the transmission slips through the down shifts when I do this (it's an automatic). And of course, it's really annoying. We're going to play with the idle tomorrow after I print off some diagrams.

Still not sure what's going on here, but I'm under the impression it's computer related.
I'll keep you all posted.