tincatinca Posted July 21, 2011 Posted July 21, 2011 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 apparentHP fuel sensor substituted - fault still apparentLP fuel pump in fuel tank monitored - appears to be working fineHP 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 Quote
paul.h Posted July 22, 2011 Posted July 22, 2011 An internet search on P1113 gives Intake air temperature (IAT) sensor circuit open/short. So may be nothing to do with the fuel supply. Only info I have seen on the hpi gives a fuel pressure of 5 bar = 72.5 psi, so are your pressures in psi and not bar ? Rather than replacing lots of bits, presumably at great expense, it may be better/cheaper to have a dealer look at it although a look at the temp sensors and their wiring and connectors would be worth doing first. Quote
paul.h Posted July 22, 2011 Posted July 22, 2011 There is another post with the same fault code on page 20 of this subforum (last reply 19/6/2010) and seemed to need a new HP fuel pump and then a pressure regulator but then the car was being sold. Copy/paste below. -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- After getting a P1113 fault code I took the car to the dealer and he said that the LP fuel pump was only delivering 3.5 bar when it should be doing 5 bar. First job therefore was to change the LP fuel pump. Bought one from GSF and had my local mechanic fit it. This did not cure the problem. However, the dealer had said that he couldn't check the HP pump because this relies on getting sufficient pressure from the LP pump to work properly. What happens is that I get the "Anti Pollution Fault" message followed by the "ESP/ASR not functioning" after I go above 2000rpm. The car then drives OK but won't go above 2000rpm. If I start the car and leave it idling, it cuts out after about 2 minutes (less if I restart). Once I've driven it and got the two warning messages, I can then leave it idling and it doesn't cut out. Can anyone confirm that this is the HP pump or do I need to take it back to the dealer for confirmation? I also had a broken breather pipe at the same time the problem occurred (which I fixed back together), but assume that this is just co-oincidence? 0 Report Back to top of the page up there ^ MultiQuote Reply-------------------------------------------------------------------------------- Page 1 of 1 Start a new topic Add ReplyOther Replies To This Topic#2 longdead Member Group: Members Posts: 27 Joined: 12-October 09 Posted 14 June 2010 - 08:36 PM I had this problem last November same code and I had to have a new hp fuel pump it is now in the garage with the same fault but got code p1294 needs fuel sensor/regulator I would get it diagnose again Longdead 0 Report Back to top of the page up there ^ MultiQuote Reply--------------------------------------------------------------------------------#3 Guest_Crankshaft_* Group: Guests Posted 14 June 2010 - 10:47 PM Longdead Thanks for your post. Was your car running OK when you first had the HP pump replaced? Pete 0 Report Back to top of the page up there ^ MultiQuote Reply--------------------------------------------------------------------------------#4 longdead Member Group: Members Posts: 27 Joined: 12-October 09 Posted 19 June 2010 - 09:09 AM Crankshaft, on 14 June 2010 - 10:47 PM, said: Longdead Thanks for your post. Was your car running OK when you first had the HP pump replaced? Pete yep ran nice and smooth until the hydractive suspension pump went in jan got that done and again it was fine until now going to sell I am getting a new c5 vtr+nav tourer Longdead 0 Report Back to top of the page up there ^ MultiQuote Reply-------------------------------------------------------------------------------- Quote
tincatinca Posted July 23, 2011 Author Posted July 23, 2011 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 Quote
paul.h Posted July 23, 2011 Posted July 23, 2011 The pressures I have seen (in the Citroen mechanics manual for the C5 available from the service.citroen website) must be from the fuel tank pump and not the high pressure one. Hopefully somebody else may add to the post with some help and also there are other forums which may be worth a look - frenchcar forum and aussifrogs. Quote
tincatinca Posted July 26, 2011 Author Posted July 26, 2011 Sorted!! I hope Bit the bullet and replaced the high pressure fuel regulator. car now running fine, only question is for how longkim :) :) Quote
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