Join Now
International Automotive Technicians Network

P1148 Diagnostic Trouble Code Discussion for January 2010

Closed Loop Malfunction Detected (Bank 1)


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 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
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