Engine Performance problem
2002 Buick Lesabre 6 cyl Two Wheel Drive Automatic 92,000 miles
2002 Buick LaSabre 3800; 92,000 mi. Car recently started idling fast (1800rpm vs. 800 normal.) It resets back to 800 by turning key off and restarting. But then usually goes back up to 1500-1800 RPM after a short time. Fault is not hard enough to apparently cause a permanant fault tag in the computer.
Which air/fuel sensor would likely cause this problem and why?
have the same problem?
Wednesday, September 17th, 2008 AT 7:37 PM