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  1. Past hour
  2. Simple: It may not solve your problem. You need to find out where the fuel pressure is venting, say at an injector, and fix it before it causes more problems, like scored cylinders. Simply adding a check valve is a band aid; find the real problem and fix it.
  3. Today
  4. My cayenne is loosing fuel pressure when off. I have replaced both pumps and pressure regulator. I have ordered a new filter. What is the problem with installing a check valve on the fuel line? Seems like a simple fix. Any comments appreciated
  5. OK Thanks ....getting it tomorrow!
  6. Okay.. Have some of the UV stuff coming today, but using my old endoscope to have a look around. Oil seems to be pooling to the rear and left (drivers side) of a grey circular thing behind the oil filler pipe in the center of the engine. See top left of the first picture. The second picture is a view below and to the left (drivers) of that grey thing. Other areas look clean dry but can't get to see behind the grey circular thing. I assume this is the AOS based on looking over parts diagrams. The oil filler pipe looks dry and clean where it connects so assume is fine until I get the UV stuff in.
  7. While the cylinders may be scored, I doubt bore scoring will trip the very specific intake valve lifter codes. It sucks that one cannot inspect the lifters without removing the cam cover, which involves a lot of labor. That's why the factory manual recommends replacing ALL the lifters (intake and exhaust) of the bank that is affected. The logic is if one lifter went bad, it's possible the others could follow since they wear similarly and are subject to the same operating conditions. If the mileage is high, it will also be a good opportunity to replace the timing chain pads.
  8. Great numbers. Spec is 0 degree +/- 6 degrees so yours are way within spec. You may want to read or re-read the two threads I mentioned before. They have identical symptoms and intake valve failure.
  9. Bore scoring? Cylinder 4 is textbook bore scoring victim for MY2003.
  10. Excellent. I'm not too familiar with those codes but per the DME 7.8 diagnostic info for 996 P1362 is intake valve of cylinder #4 does NOT switch to small lift i.e. stuck at large lift. That makes sense because at low rev, the intake valves should use small lift and they change to large lift at higher rev. That's how variocam+ works. You mentioned misfires occur only at low rpm. That's because the lifter #4 is stuck at high lift. P1371 is a general lifter code for any cyl #1-#6 do not switch to small lift. I think it's time to remove the bank 2 cam cover and inspect all the intake valves. BTW, can you check the "Cam deviation" readings of both banks? Are they solid and remain constant regardless of revs? This does not change the above but I am just curious about the general health of the engine.
  11. i got some new codes this time p01362 and p01371 how can I Diagnose further with durametic
  12. Yesterday
  13. No. The vehicle would need to have the wiring harness for the module, and then be coded with a PIWIS to accept it before it would work. Can be done, but is rather expensive, which is why people go to the aftermarket systems.
  14. Brake flush, diff oil. Have the water pump looked at. On 986's, the water pump is popularly considered a maintenance item about every 5 years I think. And please make sure they know the right way to fill an empty cooling system if it's not a Porsche dealer. Some say they know, but a friend only got 20 minutes away from the service shop before his cooling system started puking due to trapped air. They didn't use an Airlift and didn't "burp" it either.
  15. Was out on the Pelican website, looking for some maintenance parts. Saw a listing for the TPMS control module. My 2006 Boxster S, manual didn't have that as an option. Was wondering if I bought the unit, installed it would the TPMS feature work, assuming I purchased tire sensors etc.
  16. Service advice needed. I have 2006 Boxster S, original owner etc. I only have 12k miles on it, the last maintenance I had was the 60K, dealer said although miles are low, its old, and that was most appropriate, that was done 2 years ago. I've just replaced the tires, spent $1300 & now am wondering what service should I get. Of course the dealer is recommending 80K service, plus a convertible top service, cooling system flush, transmission flush, alignment flush - all extras he suggested, all told $2900. Because of the new tires, i believe an alignment is in order, so no issue there with that.
  17. Hi. Why go back, is my first question? What head unit do you have? If you want to go back to Porsche head unit, you are talking big $$$$. My Boxster head unit doesnt spit out CD's, a rebuilt repalcement unit is around $3200 + installation. Plus it depends on how the current head unit was installed, wiring-wise? Do you have a Bose system?
  18. I would recommend doing the e-gas recalibration first, then verify fuel pressure. Note it's normal the fuel pump only turns on for about 1 second to prime the system at cranking. The fuel pump will keep running only if the engine fires up. That's a trivial safety feature.
  19. I concur with JFP. A smoke test is in order. Could be your evap canister has cracked due to age/mileage.
  20. No, don't have Durametric or any other tester. What is e-gas?
  21. Hi, the car was in a heated garage in a room temperature. So it is completely dry. We did, however, clean the floor mats with wet carpet cleaner. That thing has strong vacuum and do not leave the carpets really wet. No sings of rodent. When cranking rev counter rose to maybe 100 rpm. I guess my car was build in Germany - but not really studied the case
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