G20 Stalling after being washed

[MattB]

My G20 started stalling on startup today after I washed it. It will start, then die as if it isn't getting enough gas. What could cause this? It's never done this before when I've washed it.

[Q451990]

Did you wash it under the hood? If so pull your spark plug wires and see if there's water standing down in those ports... I have a friend with a G20 that had that same problem. We wicked up as much water as possible, and things seemed to smooth out after a while - then we replaced the plugs, wires, dist. cap, etc. and it ran like a champ.

Heath

[MattB]

Didn't wash under the hood, but water may have gotten under there anyway....

[Q451990]

Hmmm... I'd just check the electrical connections for corrosion, water, etc. You shouldn't have too much water in there. Maybe it's unrelated to the wash?

Heath

[MattB]

After the first time it happened I thought it was either the MAF sensor ground, or the IAC or IAR valves, but it disappeared on its own and only reappeared after I washed the car again, so I think it's probably something to do with washing it.