1999 Pontiac Grand Am Electrical Issues

1999 PONTIAC GRAND AM
143,000 MILES
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JOSEPHMANUEL69
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I OWN A 1999 PONTIAC GRAND AM WITH A 2.4L TWIN CAM. RECENTLY IVE BEEN HAVING ELECTRICAL PROBLEMS, THE TRAC OFF LIGHT AND THE SERCICE ENGINE LIGHT GO ON AND IT STARTS RUNNING ROUGH. IF I PUT IT ON THE SCANNER, IT IT BRINGS UP AN IDLE SENSOR CODE, WHICH I
Apr 17, 2012 at 6:40 AM
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FIXITMR
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restate symptoms in reply.
Apr 17, 2012 at 6:43 AM
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JOSEPHMANUEL69
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THE SERVICE ENGINE LIGHT AND TRAC OFF LIGHT GO ON, AND IT STARTS RUNNING ROUGH. THE SCANNER CODE SAYS ITS THE IDLE SENSOR , BUT I HAD THE DEALERSHIP REPLACE IT. WHEN I RESET THE SERVICE ENGINE LIGHT TO OFF IT RUNS FINE. THEY TOLD ME I MIGHT NEED TO CLEAN THE THROTTLE BODY INTAKE. WHAT SHOULD I TRY.
Apr 17, 2012 at 6:48 AM
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FIXITMR
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is it still giving same code for IAC?
Apr 17, 2012 at 7:28 AM
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JOSEPHMANUEL69
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yes
Apr 17, 2012 at 7:34 AM
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FIXITMR
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what is the code?
Apr 17, 2012 at 8:11 AM
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JOSEPHMANUEL69
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P0507
Apr 17, 2012 at 2:47 PM
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FIXITMR
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high idle is all that indicates.
Apr 17, 2012 at 5:39 PM
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FIXITMR
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common causes besides IAC are

A vacuum leak
Leaking air intake after the throttle body
EGR valve leaking vacuum
A faulty positive crankcase ventilation (PCV) valve
Damaged/failed/dirty throttle body
Failed EVAP system

Apr 17, 2012 at 5:46 PM
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JOSEPHMANUEL69
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it sounds like vacuum leak on the drivers side, but the hose runs through a bundle of wires, covered with heat insulated tubing
Apr 19, 2012 at 3:48 AM
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