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2002 Buick LeSabre Custom 3.8L Poor Idle Quality, Cuts out, MIL Lamp on, P0449
Posted to GM Driveability on 12/16/2009 19 Replies

We just replaced the transmission in this 2002 3.8 LeSabre Custom. (It's my Wife's car so, I really have a vested interest in getting it straightened out!) The engine idles fine after a cold start, the rpm drops normally as it warms up but, once down to about ...

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  Related Documents & Media  2002 Buick LeSabre Custom

 
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car Vehicle Data

2002 Buick LeSabre Custom

VIN 1G4HP54K92
Engine3.8 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Cuts Out, MIL Lamp on, P0449
OccursAlways, Idle

Trouble Codes

P0449PCM Internal Fault
Message Closed

car Vehicle Data

2002 Buick LeSabre Custom

VIN 1G4HP54K92
Engine3.8 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Cuts Out, MIL Lamp on, P0449
OccursAlways, Idle

Trouble Codes

P0449PCM Internal Fault