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P0140 Diagnostic Trouble Code Discussion for November 2014

Heated Oxygen Sensor (Bank 1 Sensor 2) Insufficient Activity


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Trouble Ticket Help Requests for DTC P0140
Help Request Posted
2008 Chevrolet Colorado LT 3.7L Evap, O2 monitors VIN: 1GCDT13E18
P0140: B1S2 O2 Sensor insuffcient activity. Having trouble getting O2 or Evap monitor to run, all I need is one more monitor ready for the IEPA emissions test. I first tried by letting the Evap monitor run naturally which runs the first part consistently and also runs the key off portion, I am able to...
November 16, 2014
2008 Chevrolet Colorado LT 3.7L Evap, O2 monitors VIN: 1GCDT13E18
P0140: B1S2 O2 Sensor insuffcient activity. Having trouble getting O2 or Evap monitor to run, all I need is one more monitor ready for the IEPA emissions test. I first tried by letting the Evap monitor run naturally which runs the first part consistently and also runs the key off portion, I am able to...
November 17, 2014
1997 Chevrolet K3500 5.7L No Start, Hard start VIN: 1GBHK33R1V
P0140: Heated Oxygen Sensor (Bank 1 Sensor 2) Insufficient Activity. Vehicle came in with a long crank/hard start cold. put fuel pressure gauge on first thing in the morning and pressure was good. did drop to about 5o psi when first cranking.its not weather related. truck has starting problem regaurdless of temp. cam retard was...
November 18, 2014