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2002 Cadillac DeVille 4.6L Poor Idle Quality
Posted to GM Driveability on 8/11/2009 11 Replies

Car came in with a MIL on,won't idle-check codes P0106 MAF no problem found with MAF cleared the code and replaced the IAC alls good right,wrong next day customer calls car won't idle and MIL on - check codes P0506 low idle OK no problem call the parts store o...

FIX posted 8/25/2009

11 Replies Received (View Replies)

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car Vehicle Data

2002 Cadillac DeVille

VIN 1G6KD54Y82
Engine4.6 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / Idle air control
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality
OccursAlways, Cold, Hot, on Decel, Idle

Trouble Codes

P0506Idle Speed Control System Lower Than Expected