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P1137 Diagnostic Trouble Code Discussion for November 2010

Heated Oxygen Sensor (Bank 1 Sensor 2) Circuit Low Voltage During Power Enrichment

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Trouble Ticket Help Requests for DTC P1137
Help Request Posted
1999 Volkswagen Passat GLS 2.8L MIL Lamp on VIN: WVWMD63B6X
P1137: Bank 1 long term fuel trim system too rich. ... registration unlikely value), P1129(bank 2 LTF trim rich), P1127(bank 1 LTF trim rich). I found all vacuum hoses were deteriorate. Replaced all hoses and new aftermarket MAF. Road tested 60 miles. No Check engine light. Give car back to customer. Customer ...
November 06, 2010
1999 Ford F-150 5.4L Poor Idle Quality, Surge, Stall VIN: 1FTRF17Z5X
P1137: Indicates o2 sensor b1s2 lean. ... told him he needed a mass airflow sensor for a P0171 lean code he had. He said he replaced the mass airflow sensor and relized it made no real difference and brought it to me. There is no codes pending or present at this time and the engine is idling rough...
November 29, 2010