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P1153 Diagnostic Trouble Code Discussion for December 2005

Heated Oxygen Sensor (Bank 2 Sensor 1) Insufficient Switching


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Trouble Ticket Help Requests for DTC P1153
Help Request Posted
1999 Chevrolet C3500 7.4L Excessive Emissions VIN: 1GCDC5TTTV
P1153: Heated Oxygen Sensor (Bank 2 Sensor 1) Insufficient Switching. Thanks in advance for any help. This truck came in for a smog inspection. Failed as a gross polluter for hc at idle. Engine runs good, no misfires. Could not find anything that jumped out at me. At idle the short term fuel trim is right around 0 both banks, go...
December 13, 2005
1999 Chevrolet C3500 7.4L Excessive Emissions VIN: 1GCDC5TTTV
P1153: Heated Oxygen Sensor (Bank 2 Sensor 1) Insufficient Switching. Thanks in advance for any help. This truck came in for a smog inspection. Failed as a gross polluter for hc at idle. Engine runs good, no misfires. Could not find anything that jumped out at me. At idle the short term fuel trim is right around 0 both banks, go...
December 13, 2005