P1275 Code Supply Pump Exchange

[miscou]

Driving home last night I threw the P1275 Code, Supply Pump Exchange Code. The car ran fine and accelration and engine perforamnce were excellent. I'm going to trouble shoot the likely suspects, Fuel Pressure Sensor and Fuel Pressure Regulator. I was wondering of anyone had popped this code before and if it were a common problem for 996's? I couldn't find much on line which leads to beleive this is not a common occurrence. I changed the fuel filter about a year ago and have not had any problems since. On the last engine-out service (last year) I replaced all of the top and bottom "O" rings on all six fuel injectors. Any thoughts or insights would be greatly appreciated.

Thanks, ......Chris

[Loren]

P1275 Signal Delay Time for Oxygen Sensor Ageing, Bank 1 – Above/Below Limit

Possible causes::

- Oxygen sensor ahead of TWC

- Leak ahead of TWC or in the area of the oxygen sensor after TWC

- Wiring (oxygen sensors exchanged)

[miscou]

My code reader must be working from bad data. When I re-ranthe scan using the standard European codes, I got the O2 sensor delay for P1275. Also found a faily significant oil leak on 1-3 side of the motor. I'll get it up on the lift this weekend and do some more investigation. This is starting to make more sense. The car did not drive like it had a fuel problem. Thanks for setting me straight.

.....Chris