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Go Back   CamaroZ28.Com Message Board > 1967-2002 F-Body Technical Discussion > 1967-2002 Specific Technical Discussion > Computer Diagnostics and Tuning
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Old 04-28-2012, 11:22 PM   #1
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Join Date: Apr 2012
Posts: 1
94 Z28 high idle

I am having trouble with high idle concerns, it's at a shop, they think it's the lack of smog pump causing the high idle, I think not, could be wrong, also when you unplug the map sensor it doesn't effect the idle at all.....any help would be appreciated....don't know much bout the car, got it cheap, replaced,optispark,waterpump, coil, and thermostat..
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gregory55fan is offline   Reply With Quote
Old 05-01-2012, 10:56 AM   #2
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Join Date: Nov 2007
Posts: 905
Re: 94 Z28 high idle

Removing Air Pump and pipes correctly (plugging manifold ports and snorkel port) will not cause high idle. High idle can be caused by Vacuum leak, TB linkage sticking, TB set screw maladjusted (blades opened to much), Coolant Temp sensor defective or incorrect tune (desired idle speed setting). Are the fans running constantly ? High how is your idle ?
I'm Bob.. 1994 Z28, A4, Stall, CAI, Cam, RR's, 342 rear, LT's , CatBack, Tuned

Last edited by bobdec; 05-01-2012 at 11:00 AM.
bobdec is offline   Reply With Quote
Old 05-01-2012, 10:56 AM
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