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1998 Chevrolet Blazer 4.3L MIL Lamp on
Posted to GM Driveability on 8/21/2015 16 Replies

Hello all i have a 98 chevy blazer with p0171 and p0174 codes stored,at idle stft is 5-9 ltft is 15-20 at cruise speeds stft goes to 20-25 and ltft drops to 7-9, we have replaced oxygen sensors and mass air flow sensor with dealer parts have checked and could ...

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car Vehicle Data

1998 Chevrolet Blazer

VIN 1GNDT13W1W
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMIL Lamp On

Trouble Codes

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

car Vehicle Data

1998 Chevrolet Blazer

VIN 1GNDT13W1W
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMIL Lamp On

Trouble Codes

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