Join Now
International Automotive Technicians Network

P1138 Diagnostic Trouble Code Discussion for October 2005

Heated Oxygen Sensor (Bank 1 Sensor 2) Circuit High Voltage During Decel Fuel Cutoff


Note: This is a professional automotive technician's resource.
Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder.

Trouble Ticket Help Requests for DTC P1138
Help Request Posted
1997 Ford F-150 4.2L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1FTDF1726V
P1138: ho2s12 rich. READ RELATED REPAIR HISTORY AND TESTING BEFORE THIS PARAGRAPH AND YOU MIGHT NOT BE AS CONFUSED.upon inspection i noticed a definite internal eng. noise that was somewhat intermittent. r/s exh. manifold bolts loose. dpfe hoses both have holes in them and intern...
October 04, 2005
1996 Ford Mustang GT 4.6L MIL Lamp on VIN: 1FALP45X9T
P1138: lack of ho2s b1s2. this mustang came to us with history of drivability problems. the customer had it at another shop for cel light on and no power concerns. they put in a new fuel pump. this did not fix all of the problems. now he brought us the car. when i pulled the codes and ...
October 21, 2005
1997 Ford F-150 4.2L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1FTDF1726V
P1138: ho2s12 rich. READ RELATED REPAIR HISTORY AND TESTING BEFORE THIS PARAGRAPH AND YOU MIGHT NOT BE AS CONFUSED.upon inspection i noticed a definite internal eng. noise that was somewhat intermittent. r/s exh. manifold bolts loose. dpfe hoses both have holes in them and intern...
October 04, 2005
1996 Ford Mustang GT 4.6L MIL Lamp on VIN: 1FALP45X9T
P1138: lack of ho2s b1s2. this mustang came to us with history of drivability problems. the customer had it at another shop for cel light on and no power concerns. they put in a new fuel pump. this did not fix all of the problems. now he brought us the car. when i pulled the codes and ...
October 21, 2005