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P0157 Diagnostic Trouble Code Discussion for November 2008

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

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Trouble Ticket Help Requests for DTC P0157
Help Request Posted
2001 Chevrolet Suburban 1500 5.3L MIL Lamp on VIN: 3GNEC16T21
P0157: Heated Oxygen Sensor (Bank 2 Sensor 2) Circuit Low Voltage. Replaced downstream O2 sensor on passenger side (Bank 2, Sensor 2), cleared the code. MIL & same code came back 35 miles later. My scanner is showing very LOW voltage output from the new sensor. How can I test the output voltage of the new sensor?
November 10, 2008
1994 Ford Ranger STX 4.0L Poor Idle Quality, Stall VIN: 1FTCR14X0R
P0157: Mass Airflow Signal Too Low. vehicle came in with hard/ no start. Retrieved trouble codes and found possible bad MAF. Replaced MAF and vehicle runs but intermittently on initial start up, will have low idle and stall. will restart immediatly and run fine. Have checked and replaced IAC as ...
November 11, 2008