Service Engine Soon light came on this morning, pulled the codes with my scanner, but my code list only goes up to 0849. Can somebody tell me what P1300, P1590, P1171 and P1174 are, or where I can find a list of the Land Rover specific codes? I searched the forum and couldn't find exactly what they were.

There were a few other codes, bank 2 O2 sensors (0160 and 0161), ICS malfunction (0505) and 6-8 cylinder misfires (0306-0308). I ordered new magnecore 8mm wires today (the old ones are some "no-name" brand), along with 8 Bosch +4s and 4 new bosch o2 sensors (pre & post cat for both banks), will switch them all out this weekend.

Thank you very much.

 

I found the answer here. Land Rover Discovery II: Proprietary OBDII Codes > Northwest Overland Society > Most Recent. Now can anyone tell me what "ABS rough road signal circuit malfunction- Hardware is OK, but SLABS ECU is sending an error signal" means. Thanks very much.

 

Would suggest you install the plugs and wires and clear codes, many may not return, and sometimes the ECU can be fooled by too many codes at the same time.