DTC B0100 Hummer
O2S-11 (Bank 1 Sensor 1) Circuit High Input
O2S-11 (Bank 1 Sensor 1) Circuit High Input
Description
DTC P0106-P0108, P0117-P0118, P0121-P0123, P0201-P0204, P0171, P0172, P0201-P0204, P0300, P0336, P0337, P0351, P0352, P0402-P0406, P0506, P0507, P1404, P1441 and P1627 not set, ECT sensor over 140ºF, engine running in closed loop, A F ratio from 14.5-14.8
Cause and Solution
Fuel control system too rich (pressure regulator, injector leaks)HO2S element is plugged, water or fuel contaminatedHO2S is damaged or has failedTP sensor is cracked (open) causing an intermittent high signalPCM has failed
Video Guide
Diagnostic Info
- DTC Code: B0100
- Brand: Hummer