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2002 Chevrolet Impala 3.4L High Idle
Posted to GM Driveability on 2/6/2009 7 Replies

At start up this vehicle's IAC counts are 38 (normal) then steadly increase to 230 counts (3500 rpm) within two minutes. Using Tech 2 RPM does not change when I command IAC up or down. Fuel trims are at 0% +/- 3%. Fuel pressure is at 45psi, regulator is not le...

7 Replies Received (View Replies)

  Related Documents & Media  2002 Chevrolet Impala

 
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car Vehicle Data

2002 Chevrolet Impala

VIN [No VIN Available]
Engine3.4 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / sfi
EmissionsOBD-II Compliant
SymptomsHigh Idle
OccursHot, Idle
Misc.P0507

Trouble Codes

P0507Idle Speed Control System Higher Than Expected
Message Closed w/FIX

car Vehicle Data

2002 Chevrolet Impala

VIN [No VIN Available]
Engine3.4 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / sfi
EmissionsOBD-II Compliant
SymptomsHigh Idle
OccursHot, Idle
Misc.P0507

Trouble Codes

P0507Idle Speed Control System Higher Than Expected