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P0157 Diagnostic Trouble Code Discussion for June 2007

Heated Oxygen Sensor (Bank 2 Sensor 2) Circuit Low Voltage

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Trouble Ticket Help Requests for DTC P0157
Help Request Posted
1999 Chevrolet Silverado 1500 4.8L Hesitation, MIL Lamp on, backfires VIN: 2GCEK19V7X
P0157: Heated Oxygen Sensor (Bank 2 Sensor 2) Circuit Low Voltage. checked fuel reg, working fine & not leaking, unpluged downstream o2s, ran better but still set same codes, plus set codes for low activity on sensors, ofcorse, i have also sprayed intake for leaks, fuel trims had no change. i also checked fuel volume, ple...
June 09, 2007