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Cayenne_GTS

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    Edmonton
  • Porsche Club
    PCA (Porsche Club of America)
  • Present cars
    2008 Cayenne GTS

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  1. Thanks RFM! I'll give this a shot. I've been checking out the tool and the data logging\monitoring and still getting used to it. Do you mean check the pressure value through Durametric (assuming that's even possible), or manually through the shrader valve? I did a search and noticed there are some instructions on how to do a fuel pump test. Loren provided a great drawing on fuel pumps and normal values. I also checked out the 1025 code a bit more online and noticed a few references to the fuel pressure regulator and\or fuel pressure control valve which leads me to believe it could also be a faulty fuel pump (not hpfp). Whenever I see these types of errors I immediately think sensors, but I have no experience with these cars unfortunately. Another thing that crossed my mind is that I happened to get a faulty or defective hpfp. Thinking that's probably somewhat unlikely. We've got a great shop here locally we take our other car too and might just have them take a quick scan instead of guessing until I get used to the durametric. Thanks again for your help!
  2. So I have a bit of an update after replacing the pump and was wondering if someone might be able to help. I replaced the pump which turned out to be an easier job than I anticipated. The instructions were spot on and helped tremendously. After I replaced the pump and buttoned everything back up again I fired up the car and discovered the same rough start and inconsistent idle. CEL came back on again and was at a loss as to what might still be the issue. Thankfully the Durametric I ordered came in and was able to scan the car. Still getting used to the software, but after quick scan it came back with the following: 1025: Fuel high pressure adaption Upper limit value exceeded 1026: Fuel high pressure implausible Value below lower limit value In all honesty, these codes are greek to me. I checked online and here on the forum and it seemed to point back to the HPFP......unless I'm getting incorrect codes. I think I installed the pump correctly. Seems almost impossible to do incorrectly unless you forget to put back the clutch and\or stopper. I triple checked everything before I put it on. Was going to head back out to do it all again just to make absolutely sure I got everything. Before I spend any more time I was wondering if anyone else has had this experience or would happen to know if there's anything else I can check for myself or if I should just take it in to the mechanic and have them do a quick once over. Any help or advice would be greatly appreciated. Thanks again.
  3. Thanks Pk! This is EXACTLY what I was looking for. I'd also like to thank bobo83 for sending a quick message as well. I'll order the part up hopefully today, but feel a lot more confident about tackling this one now. Thanks again guys. I super appreciate it.
  4. First time post, so I apologize in advance for any forum newbie-ness I recently received confirmation from the dealership that the recalled HPFP that was already replaced 25k miles ago has already gone, again. The first one didn't cause any issues...that I'm aware of. It was just removed as part of a recall. I would imagine that under very normal driving (not towing, racing, etc) the pump should last a bit more than 25,000 miles, but it appears not. In any case........ I've poked around and performed a few searches and found a bit of info here and there about where it's located, but nothing to do with any instructions on how to replace it. It looks like the pump is located on the back of the 2nd bank of cylinders on the drivers side and attached with a few bolts. It seems (famous last words) like a relatively straightforward job, but I had a few questions that I was hoping someone might be able to answer before I order the part and dig in: Minus the knucle-busting location of the pump at the back of the engine bay, is it as simple as remove the sensor connection, disconnecting both inlet and outlet connections and unbolting\removing the pump? Am I missing something very important? Thanks in advance!
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