Rough idle
#3
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Yeah they were replaced with the rebuild, it doesn't die out , just idles between 1200-700ish rpm? (when cold) 1000-800rpm (warm) Changed the plugs. But above 1500rpm she idles smooth and pulls like a train all the way to the red, not loosing any water or oil, bit stuck myself??
Last edited by Goodz; 06-11-11 at 12:00 PM.
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Whats the best way to check for these? someone said to blow into one of the intercooler pipes and listen for leaks but i thought that would ony be useful for boost leaks?
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The "best" way to check this is block off the intake and pressurize the system with shop air. Listen for leaks, and spray soapy water if necessary. If this yields nothing you may just be running lean at idle. This will also cause idle hunting, and is usually the fault of a poorly calibrated TPS sensor.
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It has been street ported and apexi induction kit, and blitz cat back exhaust. It hasn't always done this. But once the car is up to temp it idles a lot better, but still a little off.
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