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2003 Chevrolet Suburban 1500 LT 5.3L MIL Lamp on, Lean Condition
Posted to GM Driveability on 12/27/2007 31 Replies

After replacing uel pump and filter, vehicle came back with same codes. LTFT is 11% bank1 and LTFT is 13% bank2. Checked for vacuum and is good (18hg") Truck has no misfire. No TSB's and Did the whole troubleshooting tree according to Mitchell. Everything Chec...

31 Replies Received (View Replies)

  Related Documents & Media  2003 Chevrolet Suburban 1500 LT

 
Message Closed w/FIX

car Vehicle Data

2003 Chevrolet Suburban 1500 LT

VIN 1GNFK16Z63
Engine5.3 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / SEFI
EmissionsOBD-II Compliant
SymptomsMIL Lamp on, Lean Condition
OccursAlways
Misc.Mpv

Trouble Codes

P0171Fuel System Too Lean (Bank 1)
P0174Fuel System Too Lean (Bank 2)
Message Closed w/FIX

car Vehicle Data

2003 Chevrolet Suburban 1500 LT

VIN 1GNFK16Z63
Engine5.3 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / SEFI
EmissionsOBD-II Compliant
SymptomsMIL Lamp on, Lean Condition
OccursAlways
Misc.Mpv

Trouble Codes

P0171Fuel System Too Lean (Bank 1)
P0174Fuel System Too Lean (Bank 2)