idle problem!
04-18-2009, 09:08 AM
#23
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well, i took the car to a friend, Todd Marcucci, we checked everything possible, turn out my throttle cabble was overly tighten!!! wen you let go of the gas, the throttle still have a tiny tini gap!, after we loosen the cable for a bit, the throttle was shut all way and no more bad idle and stalling, YAY for the problem being solve, and NAY for my stupid carelessness !!!
04-20-2009, 04:07 PM
#25
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Originally Posted by Burgman,Apr 16 2009, 04:41 PM
When the IAC valve is cold, wax in the valve srinks thus bypassing enough air for a high idle when the engine is cold. Engine coolant will cause the wax to expand as the engine warms thus lowering the idle. Once the engine is fully warm the electrical part of the valve will control idle speed. If the electrical part of the IAC valve is bad then the engine will idle until the wax in the valve warms up.
04-21-2009, 08:45 AM
#26
Originally Posted by haoheomap,Apr 18 2009, 09:08 AM
well, i took the car to a friend, Todd Marcucci, we checked everything possible, turn out my throttle cabble was overly tighten!!! wen you let go of the gas, the throttle still have a tiny tini gap!, after we loosen the cable for a bit, the throttle was shut all way and no more bad idle and stalling, YAY for the problem being solve, and NAY for my stupid carelessness !!!
-Colin
04-21-2009, 11:14 AM
#28
^^^ There is a simple throttle cable adjuster on the side of the throttle body. You can adjust the cable slack there. Sounds like the OP had gone past the freeplay amount and had the TB butter fly slightly open at rest, I guess the ecu doesnt like that and tried to compensate which created a poor idle. First I have heard of this issue coming up. There have been threads past where removing some of the throttle free play made for a more responsive car so this was kind of a DIY mod, but guess the OP got carried away a bit 
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