Engine Performance problem
2005 Cadillac STS V8 Two Wheel Drive Automatic 41,000 miles
My 2005 STS V8 has set DTC P0174 persistently. It has been to the dealer 5 times. First they cleaned the MAF and the intake system. That worked for two weeks and then the code came on again. They cleared the computer and reprogrammed (reflashed?) The thing. That worked for a few weeks and the code reset again. This time they replaced the intake gaskets and the MAF mounting rubber and that worked for two months. The code has now reset and the light is on again. Surely they have checked the fuel pressure thus eliminating the pump and the filter. How would I go about checking the injectors? What else could be going on? No drivability problems show up but gas mileage does seem to fall about 2mpg.
have the same problem?
Sunday, March 7th, 2010 AT 10:23 AM