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P1138 Diagnostic Trouble Code Discussion for November 2005

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

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Trouble Ticket Help Requests for DTC P1138
Help Request Posted
1996 Land Rover Range Rover SE 4.0L MIL Lamp on VIN: SALPE1240T
P1138: rich bank one. vehicle now has fault codes po138&p1138- volt reading at o2s are 1.20volts and fixed,according to 2 differint scan tools, disconnected a couple injecters and volt reading stayed the same?? am thinking it is a control unit problem, but control unit is big$$...
November 16, 2005