tincatinca

Sorted!! I hope Bit the bullet and replaced the high pressure fuel regulator. car now running fine, only question is for how long kim :) :)

Hi Paul thanks for answering. The fault codes have different meanings depending on engine model. P1113 on a 2.0 hPi indicates fuel high pressure fault usually caused by one of the three main components of the high pressure fuel system ie Pump, Regulator, or sensor. I was really after feedback re the reliability of the high pressure fuel regulator since although this is often the culprit, it was changed on my car last year. I have already substituted pump and sensor with no effect. If I were to take it to a dealer they would have a whale of a time charging me for diagnostics which would only result in the same code and then them replacing the items that I have already substituted, this would inevitably cost more than the car is worth.And certainly more than I have already paid out. Fuel rail pressures I indicated were Bar the hPi norms are around 70 Bar at idle to 100 Bar under full load. Whilst I fully undestand why this may seem excessive, we are talking about a high pressure direct injection engine that requires this much pressure to operate correctly. Please dont take this reply as negative, I really do appreciate any info :) kim

Hi I currently have a problem with my 2002 C5 Hpi. Engine starts from cold fine. It then idles til engine gets to normal operating temperature ( around 10 to 15 minutes)engine revs then increase slightly for around 30 seconds before completely cutting out. Unable to restart until cold again. Code P113 recorded in ECU Monitoring fuel pressure shows around 70bar during idle then, of its own accord, it ramps up to 110 bar (coinciding with revs increase) then cuts out. To me this indicate a real increase in fuel rail pressure rather than a false output from sensor. during warming up period pressing and releasing the accelerator results in corresponding increase/decrese of fuel rail pressure. Steps to resolve so far: HP Pump substituted - fault still apparent HP fuel sensor substituted - fault still apparent LP fuel pump in fuel tank monitored - appears to be working fine HP Fuel regulator was replaced last year following problem when car would run for around 20 miles then cut out. So although to me it would be the Prime Suspect I wondered if you all had any tales of new fuel regulators failing within a year. I am now at the point of last attempt to cure fault before reducing the car to its core components so any ideas would be most warmly received. I await your worldly wisdom Kim