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P0154 Diagnostic Trouble Code Discussion for November 2014

Heated Oxygen Sensor (Bank 2 Sensor 1) Signal Remains At Center

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Trouble Ticket Help Requests for DTC P0154
Help Request Posted
1996 Chevrolet C1500 5.0L Cuts out, Stall, Hard Start VIN: 1GCEC14M6T
P0154: Heated Oxygen Sensor (Bank 2 Sensor 1) Insufficient Activity. Working on a worn out 1996 C1500. Hard start almost always, runs for 10-15 seconds, stalls. When it does run longer, it cuts out with quick throttle input and backfires. It starts easier on carb clean. Fuel pump was leaking back pressure, so we replaced it a...
November 18, 2014
1997 Chevrolet K3500 5.7L No Start, Hard start VIN: 1GBHK33R1V
P0154: Heated Oxygen Sensor (Bank 2 Sensor 1) 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