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1997 Buick LeSabre Custom 3.8L High Idle
Posted to GM Driveability on 11/16/2010 33 Replies

Thanks in advance for all your replies. This one has me stumped, intermittent but occurs 80 to 90 % of the time. When you start the car tps voltage is about .56v but the angle climbs to 1 to 2% and when this happens the idle goes up to about 1450rpm desired is...

FIX posted 11/23/2010

33 Replies Received (View Replies)

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car Vehicle Data

1997 Buick LeSabre Custom

Engine3.8 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / efi
EmissionsOBD-II Compliant
SymptomsHigh Idle

Trouble Codes

P0507Idle Speed Control System Higher Than Expected