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P1154 Diagnostic Trouble Code Discussion for April 2012

Heated Oxygen Sensor (Bank 2 Sensor 1) Transition Time Ratio

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Trouble Ticket Help Requests for DTC P1154
Help Request Posted
2002 Pontiac Firebird 3.8L MIL Lamp on VIN: 1GC2MERUS2
P1154: Heated Oxygen Sensor (Bank 2 Sensor 1) Transition Time Ratio. vehicle came from another shop, with both not enough cross counts codes, bank 1 and bank 2. O2 sensors are responding fast based on testing, MAF has been swapped with known goog one, no change, im leaning twards not enough fuel volumen at cruise, fuel pressure...
April 17, 2012