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Everything posted by JFP in PA

  1. I doubt it is real. If you were leaking that much fuel, you would see or smell it. If the car was running that rich, it would run odd and stink. I think your trip computer is off.
  2. Welcome to RennTech It always helps to provide the car’s model and the symptoms of your problems.
  3. Check your crank position sensor; hard starting when warm is a classic sign of CPS problems.
  4. Does that purge valve stay closed (hold vacuum or pressure)? You check the fuel pressure by attaching a fuel pressure test gauge to the test port on the fuel rail, and then check your pressures running and shut off. Can you use your OBD device to read fuel trims?
  5. I'd start by checking the fuel pressure, then looking at the EVAP purge valve (they can often be cleared with a quick blast of compressed air). I would also look at the fuel trims. I have no idea why they list the MAF, it is not even mentioned in the factory OBD II manual for the car decision tree for diagnosing the codes. Once of the biggest issues with a generic OBD II scanner is they often list fixes that may have worked on a Ford Fiesta, but totally do not pertain to your Porsche. For example, while they do point out valid possibles, I have no idea how replacing a brake booster is going to help an overly rich A/F mixture issue...………..
  6. Yes, you went after the wrong thing. Both codes indicate an overly rich condition that the system cannot compensate for, possibly from a high fuel pressure issue, leaking injectors, or a stuck EVAP purge valve. Lesson here is to learn what the codes are telling you before reaching for a credit card...…………..
  7. Welcome to RennTech You can start by posting this in the correct forum section "Lost Radio Code - post your request here"...…………..
  8. You need to take equal amounts of both sides of the gap to obtain the final clearance. We use a Total Seal unit to do this: But you can use a simpler hand tool like this to get to the same place:
  9. The immobilizer under the seat is coded to your keys and the DME, it cannot simply be changed out, it requires coding with a PIWIS or PST II.
  10. Welcome to RennTech On cabriolets, the number 2 relay panel is mounted to the rear of the roll over protection frame. You need to put the top in the "service" position to gain access to it.
  11. I would look at the O2 sensor voltages before and after the main cats, and would also check the fuel trims. A lamda of 1.0 would have the engine running at an air/fuel ratio of 14.7:1; if the lamda is above 1.0, the engine is running lean, if below 1.0 the engine is running rich. You have a lean condition, which could be as simple as a vacuum leak.
  12. Just get the factory unit and be done with it. Piersburg is supposed to be a supplier to Porsche, but the units I have seen in the aftermarket do no look the same.
  13. I have no idea where you subwoofer is, how about a photo?
  14. In relay panel #2, under the rear parcel trim panel, behind the rear seat backrest.
  15. As I mentioned earlier, we only use the factory pump. Your old cap sounds beat, the new cap is about right.
  16. Welcome to RennTech You are not the first, nor will you be the last to run into problems trying to mate unknown after market technology in the Porsche MOST and CAN Bus technologies. Even some "top of the line" audio systems have problems with this. MOST is fiber optics, and CAN Bus is a single twisted pair networking format. Good luck.
  17. Many OBD II scanners do not successfully read Porsche codes, particularly for something like the PDK. You need a Porsche specific tool (Durametric, PIWIS).
  18. Welcome to RennTech I think you will find that this device is no longer made. Try looking for a used one, or fabricate one yourself.
  19. Sometimes it is the simplest things. Glad you got it sorted, now go get a factory pump.........
  20. Chance would be a fine thing. $5-10K would be an excellent deal, the annual lease costs for a current PIWIS system is $20K per year...……..
  21. 0.032 is more than a little lose for this bore size, the old rings are closer to correct. To make sure I understand where you are, you cannot get the piston into the bore with the new rings on it, correct? If so, what kind of ring compressor are you using? And where did you source the replacement rings from?
  22. Checking the coolant for combustion by products was a good idea, you have removed another possibility. Now, about that water pump...…...
  23. I called two wholesalers that handle Gates and aske them to look, one said metal, the other composite. I think the Gates is a 50/50 proposition.
  24. Welcome to RennTech What is the end gap of the ring in question when inserted alone into the cylinder bore at a depth of about 1 inch below the deck?
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