Idle driving me crazy!! Won't come down., What's wrong? Options

[Temporary-Failur...]

I have -94 ST202 with 3SGE engine. Idle won't come down. It idles with warm engine around 1100rpm. I have checked almost everything:

1. vac leaks
- can't find any

2. cleaning IAC
- cleaned

3. error codes
- nothing

4. throttle cable too tight
- no no and no...

5. adjusting IAC
- Adjusted and no help

6. checking IAC does it even work
- checked, it works

7. selling the car and buy Nissan instead
- probably...


Can broken lambda sensor cause this?

[Temporary-Failur...]

I replaced sensor, reset ECU and no help. Still 1100RPM.

I checked fault codes and now engine light blinks quite fast and continuously.

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edit:



I think I found the solution. I adjusted posture of the TPS and....... WORKSSS!!!!!!!!!! Now idle drops nicely to its target rpm.

But because I'm pessimist, I just think that I fixed problem by making other problems and real problem still occures altought it is not visible just now.


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edit2:

What kind of mayhem car should run after resetting ecu? Before founding solution I resetted ecu many times. Car did nothing differently after that. It was basically normal start. But now after adjusting TPS, first start was very odd. Idle was jumping 200-300rpm somewhere 2000rpm very fast. It did that less than half minute and settled down. I gave a little bit gas and it started to jump around 1000rpm few times and then dropped idle to the normal. Same thing occured few times when I was doing test run. Maybe 10 minutes it acted strangely and now it works perfectly.

This post has been edited by Temporary-Failure: Jan 23, 2010 - 3:16 AM