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1999 GMC Sierra 1500 SL 5.3L MIL Lamp on
Posted to GM Driveability on 3/22/2012 26 Replies

this truck is testing my patience. it was brought to me with a missfire and MIL on with code p0300. miss fire count showed #6 with the most counts. found injector connector had been damaged. i replaced all 4 injector connectors on bank 2. (soldered connections...

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  Related Documents & Media  1999 GMC Sierra 1500 SL

 
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car Vehicle Data

1999 GMC Sierra 1500 SL

VIN 1GTEK19T1X
Engine5.3 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursIntermittently

Trouble Codes

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

car Vehicle Data

1999 GMC Sierra 1500 SL

VIN 1GTEK19T1X
Engine5.3 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursIntermittently

Trouble Codes

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