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1995 Chevrolet Blazer 4.3L Excessive Emissions, Poor Fuel Economy, MIL Lamp on
Posted to GM Driveability on 7/20/2006 9 Replies

Helping out the shop foreman here, and hoping to show him the value of IATN at the same time. We suspect a wiring problem. I read thru the archives and found many emissions problems, but none with these codes. We have inspected the wire harness, and are about ...

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  Related Documents & Media  1995 Chevrolet Blazer

 
Message Closed w/FIX

car Vehicle Data

1995 Chevrolet Blazer

VIN 1GNDT13W1S
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsExcessive Emissions, Poor Fuel Economy, MIL Lamp On
OccursAlways

Trouble Codes

P0133Heated Oxygen Sensor (Bank 1 Sensor 1) Slow Response
P0171Fuel System Too Lean (Bank 1)
P1133Heated Oxygen Sensor (Bank 1 Sensor 1) Insufficient Switching
Message Closed w/FIX

car Vehicle Data

1995 Chevrolet Blazer

VIN 1GNDT13W1S
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsExcessive Emissions, Poor Fuel Economy, MIL Lamp On
OccursAlways

Trouble Codes

P0133Heated Oxygen Sensor (Bank 1 Sensor 1) Slow Response
P0171Fuel System Too Lean (Bank 1)
P1133Heated Oxygen Sensor (Bank 1 Sensor 1) Insufficient Switching