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November 4, 2019 at 11:27 pm
#895208
1999-2005 Pontiac Grand Am has a screw to adjust idle speed. It is located on bottom side of the throttle body, and easiest to adjust if the throttle body is taken off. Has hex head, tighten to increase idle and loosen to reduce idle speed. I feel turning around 1.25 is good adjustment to test.