Help .. Idle surge
yup, I read some troubleshooting tips and no help. here's the problem
Symptom : Only when it's warm/hot out, and the car has been running for a while, the idle will start to creap up. When it really gets warm the idle will go up to about 1500rpm, and then drop to 900, and back up. in roughly a 3 second cycle. Makes ppl think I wanna race them.
I've disconnected the Idle speed control motor and it (surprisingly) was not the cause. I'm leaning towards the throttle position sensor, but before I get a new one, has anyone ran into this before??
any help appreciated.. the warm weather is just around the corner.
2G with T3/T04E turbo, 272 in/ex, full 3" exhaust