P1153 Diagnostic Trouble Code Discussion for October 2011
Heated Oxygen Sensor (Bank 2 Sensor 1) Insufficient Switching
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| Help Request | Posted | |
| 2003 Chevrolet Silverado 1500 4.3L Hesitation, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 1GCEK14X33 P1153: Heated Oxygen Sensor (Bank 2 Sensor 1) Insufficient Switching. This truck has me stumped!!! O2 Sensors installed but vehicle misfires after 5-10 miles and FT%/ST% above threshholds after driving. O2's flatline and system dumping fuel due to lean condition. Inspected spider assy with fuel pump running and no detectable lea... |
October 07, 2011 |
