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P1148 Diagnostic Trouble Code Discussion for January 2010

Closed Loop Malfunction Detected (Bank 1)

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Trouble Ticket Help Requests for DTC P1148
Help Request Posted
2003 Land Rover Freelander S 2.5L MIL Lamp on VIN: SALNY12233
P1148: o2 post cat bank 1- short to ground. vehicle came in with 1/2 dozen codes most of which disappeared with new MAF , the 1148 code seems to be persistant now. have put in a new o2 with no improvement, also quickly checked circuits for shorts, none found...has anyone found ECM issues with these Free...
January 20, 2010