Question about 1998 Audi A4
There's no code to reset the computer. Go out, turn the key on, but don't start the engine. The throttle position sensor sets itself up, and if you have an ATQ engine, you have a drive-by-wire throttle setup as well. In that case, the throttle body itself will align itself when you do this (you'll hear a humming from the back center of the engine). When the humming stops, you can crank up the car. My 99 A4 takes awhile to relearn everything - I'm usually in for a week's worth of surging idle and occasional stalling when I reconnect the battery after working on it, so give it some time.
Posted on Feb 10, 2009
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Posted on Jan 02, 2017
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