dtompsett

Ok.. developed a rather strange problem with the rally car. Throttle has been sticking the last two days... but it doesn't seem like it's the throttle linkage. If it gets stuck, it'll idle around 4000+ rpm... which means it'll keep pulling you down the highway! If it does finally unstick, the idle bounces 1000-1250rpm. By the time I got to work today, after a quick sprint on the highway, the throttle was stuck at 5000rpm. Fiddling with the linkage did nothing... shutting down an engine sitting at 5000rpm isn't fun either.

Anyone have any ideas? I'm wondering about the ISV issue... but why would it be opening at WOT? I've had sticky throttles before from driving in snowstorms (my old vw Fox)... and admittedly it's been REALLY cold here the last few days. But there are no signs that the throttle body itself is stuck open.

Nkugs90

it was on my 2.0 80. The temp sensor was shot! It could be your isv though.

NoNonsense

It could also be condensation that has frozen inside, but that seems like it would be more of a constant issue rather than intermitent

dtompsett

Well.. I did wash the car sunday night... started monday night...

dtompsett

brand new temp sensor about 4 weeks ago. (when I did timing belt/water pump)

NoNonsense

especially since you had the bouncy idle.

dtompsett

Running out at lunch to see if I can troubleshoot anything.

90/90Qs

1. The hood carpet was hanging down on my engine, hampering the linkage return. There was a wear mark in the carpet. Took me a long time to figure that out.
2. Another time, my cruise linkage was broken and disconnected. It was jamming against something causing the throttle to stick as well. Since your car is a rally-er I'd imagine you don't have CC though.
HTH

Marty

Just Paul

then plug it in again (quickly), if the idle resets you've found your problem. Start looking at buying a new one because the cleaning thing is only temporary.

dtompsett

I've had #2 happen... driving my first 90q home the day I bought it!