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2003 Chevrolet Tahoe Z71 5.3L Poor Idle Quality, MIL Lamp on
Posted to GM Driveability on 4/12/2011 9 Replies

We have this vehicle in that a dealership diagnosed a faulty cat on this vehicle. We replaced the cat with oe, cleared codes and then it was running poorly. My tech replaced the b2s1 with an oe part. We are having a problem with b2 running lean. ltft is at 25,...

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  Related Documents & Media  2003 Chevrolet Tahoe Z71

 
Message Closed w/FIX

car Vehicle Data

2003 Chevrolet Tahoe Z71

VIN 1GNEK13Z83
Engine5.3 L / 8 cyl / FLEX
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, MIL Lamp On
OccursAlways

Trouble Codes

P0174Fuel System Too Lean (Bank 2)
P0300Multiple Misfire Detected
Message Closed w/FIX

car Vehicle Data

2003 Chevrolet Tahoe Z71

VIN 1GNEK13Z83
Engine5.3 L / 8 cyl / FLEX
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, MIL Lamp On
OccursAlways

Trouble Codes

P0174Fuel System Too Lean (Bank 2)
P0300Multiple Misfire Detected