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1999 Chevrolet Express 2500 5.7L MIL Lamp on,
Posted to GM Driveability on 9/13/2011 10 Replies

This vehicle came in with check engine light on, no drivability issues. Code po134 stored for Bank 1 Sensor 1 oxygen sensor no activity. Scan tool data revealed voltage stuck at 450mv. Replaced Sensor with Denso Aftermarket Sensor, cleared codes and scan tool ...

10 Replies Received (View Replies)

  Related Documents & Media  1999 Chevrolet Express 2500

 
Message Closed w/FIX

car Vehicle Data

1999 Chevrolet Express 2500

VIN 1GBCG29R8X
Engine5.7 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / SEFI
EmissionsOBD-II Compliant
SymptomsMIL Lamp On,
OccursAlways
Misc.Passenger Van

Trouble Codes

P0134Air Fuel Sensor (Bank 1 Sensor 1) Heater System Malfunction
Message Closed w/FIX

car Vehicle Data

1999 Chevrolet Express 2500

VIN 1GBCG29R8X
Engine5.7 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / SEFI
EmissionsOBD-II Compliant
SymptomsMIL Lamp On,
OccursAlways
Misc.Passenger Van

Trouble Codes

P0134Air Fuel Sensor (Bank 1 Sensor 1) Heater System Malfunction