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Diagnostic troubles
Posted to Technical Discussion Forum on 1/23/2008

Hello everyone,

I'm having some trouble diagnosing this vehicle. It has three codes, P0134 (low O2 activity B1, S1), P0154 (low O2 activity B2, S1), and P0171 (Fuel system too lean B1). B1, S1 O2 sensor is staying on zero most of the time and short term fuel... Login to read more.

 

car Vehicle Data

2003 Chevrolet Express 3500 6.0L

Engine6.0 L
Trans4-speed Automatic (Electronic)

car Vehicle Data

2003 Chevrolet Express 3500 6.0L

Engine6.0 L
Trans4-speed Automatic (Electronic)