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LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

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Old 08-21-2003, 01:25 PM
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Idle
My caar idles at about 1150. Could that be related to a dirty or malfunctioning MAF sensor?
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Old 08-21-2003, 02:30 PM
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Is the idle that high when cold, hot, or both? In gear or out of gear?
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Old 08-21-2003, 05:34 PM
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For sure when warm, don't really remember what it does when it's cold. I have a M6, so it is idle when out of gear.
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Old 08-21-2003, 05:39 PM
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Mine Idles about 1000 cold and when warm. It''s been like this since I bought the car years ago. I've never had any kind of problems with it.
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Old 08-21-2003, 07:47 PM
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Get a scan tool and check your idle that way. I'll bet $20 the tach is wrong.
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Old 08-21-2003, 10:25 PM
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i had an idle over around 1k. When I failed my smog test I scaned the car and found a leaky fuel injector. When I changes that the idle dropped back to 650rpm, just like it was when I got it.
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Old 08-21-2003, 10:47 PM
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Check for easy things like leaking vacuum hoses. Your IAC and passages might need cleaning, too.
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