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2004 GMC Envoy SLE 4.2L Poor Idle Quality, Reprogramming
Posted to GM Driveability on 6/30/2010 3 Replies

Reprogramming error? where can you get the codes (e000) codes e4491 reprogramming error and e4423 unknown reprogramming error. Line 9, operation b4,error code fd. Line 9, operation b4, error code 77. Line 14, operation ee, error code 0. The ecm took the recali...

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  Related Documents & Media  2004 GMC Envoy SLE

 
Message Closed w/FIX

car Vehicle Data

2004 GMC Envoy SLE

VIN 1GKDS13S34
Engine4.2 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / SEFI
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Reprogramming
OccursReprogramming
Misc.Reprogramming

Trouble Codes

E4423Unknown reprogramming error
E4491Reprogramming error
Message Closed w/FIX

car Vehicle Data

2004 GMC Envoy SLE

VIN 1GKDS13S34
Engine4.2 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / SEFI
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Reprogramming
OccursReprogramming
Misc.Reprogramming

Trouble Codes

E4423Unknown reprogramming error
E4491Reprogramming error