Quote:
Originally Posted by Kaifd3s
Search on how to properly adjust the IACV. You have to disconnect the TPS and stuff when adjusting it. Also when you cleaned it out did you replace the gasket for it? IF you didn't, that would just make your idle problem even worse.
Find that boost leak. Try pressurizing the system and just spray a soapy water mix around the pipes. Look for bubbles.
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I found a decent write up here.
http://www.zerotohundred.com/newforu...nd-timing.html
I had no idea I had to disconnect the TPS first. Anyways.. I think that boost leak I am experiencing is the root of everything. I probably wouldn't even have any idle problems if it was fixed. By adjusting the idle, I could be just putting a temporary band aid on the problem.
I tried soapy water but just couldn't see anything. The only indication of a leak near the turbo is that I can hear it. I plugged the air filter inlet, plugged the neck fitting on the compressor that goes to the intercooler, plugged the small hole on that same fitting that goes to the valve cover and hook my air compressor to it. I can hear the leak. I cannot feel any air around the turbo. That's why soap water won't work. It sounds like a big leak. My only thoughts are that its leaking air through the turbo seal into the turbine side of the turbo.
How likely could this be happen? Anyone with experience on this? I would hate to rebuild the turbo to find out that the problem was something else that's still there. If air was escaping into the turbine side of the turbo, I guess I could disconnect the turbo elbow to the downpipe and check to see if compressed air is felt in there.
Edit:
I have a good feeling that my wastegate could be stuck slightly open. The leak sounds big so if it was the turbo seals, I doubt it would be a big leak.
I have a TurboXS manual boost controller I haven't installed yet. By putting this inline with the wastegate, could this potentially fix my problem?
Thanks to everyone for all the help so far. I'll check tomorrow and report back.