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JFP in PA

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Everything posted by JFP in PA

  1. JFP in PA
    There is nothing there that tells me what fluid they used.
  2. JFP in PA
    I would try starting the car briefly from cold without the serpentine belt on it to see if the noise goes away.
  3. JFP in PA
    Could be several things. You may have a cam position sensor on the way out, it could be a problem with the VarioCam system itself on that bank, it could also be a chain issue. You need to dig deeper...........
  4. JFP in PA
    I'd ask them what they used; they would not be the first dealership we have seen use aftermarket gear oil. Assume nothing, question everything.
  5. JFP in PA
    I would definitely change the fuel filter. Along with checking all of the connections again, I would also use a digital manometer to check the vacuum level of the AOS. We have had little luck with aftermarket replacement AOS units due to the high rate of "right out of the box" failures, and no longer use them.
  6. JFP in PA
    Fuel pressure spec is 3.8 bar+/- 0.2 bar, or 55 PSIG +/- 3 PSIG. When was the last time the fuel filter was changed? From Porsche OBD II Manual: P1124 Oxygen Sensing Adaptation Area 1 (Cylinders 1 - 3) - Rich Threshold P1126 Oxygen Sensing Adaptation Area 1 (Cylinders 4 - 6) - Rich Threshold Possible causes: - Intake air system leaking. - Fuel pressure too low. - Volume supply of fuel pump too low. - Fuel injectors fouled What the DME computer is saying is that it thinks the mixture is too lean (too much air) and that it can not compensate by making the mixture richer (adding fuel). 9 times out of 10 this is an air leak. An air leak can be a loose or damaged intake hose, a cracked oil filler pipe, or a bad AOS.
  7. JFP in PA
    The factory fill. Porsche has used unique spec gear oils for years, which no one in the after market has a match for. We buy ours in drums from a dealer.
  8. JFP in PA
    Welcome to RennTech I can only assume they did it correctly, as there is no way to know for sure. As much as I hate to say it, yours sounds more like the wrong gear oil than a shifter adjustment. A maladjusted shifter does not heal when it gets warm, but the wrong lubricant will tend to behave that way.
  9. JFP in PA
    The motor and hydraulics are separate, I seriously doubt anyone is going to cover the leak repair, dealer or otherwise.
  10. JFP in PA
    To see the plug firing voltages, you need an oscilloscope.
  11. JFP in PA
    That is where I am leaning............
  12. JFP in PA
    Loose harness connection or a short.
  13. JFP in PA
    If you are getting misfire codes, the plugs are wet from misfires, not richness. If the mixture was so rich, you should throw codes associated with being overly rich.
  14. JFP in PA
    I would also expect that five overly rich cylinders would trigger codes............
  15. JFP in PA
    I'm away from the shop at the moment, so I do not have access to nominal trim values, but I'm sure someone can chime in with them.
  16. JFP in PA
    You need to scan the vehicle for fuel trim levels.
  17. JFP in PA
    Your choices are limited by Porsche's rather unique diagnostic logic protocols, a PIWIS would be the best but is a lease only item and starts at $18K for the first year. Next would be the Durametric software system, which has around 80-85% of the PIWIS capabilities and sells for less than $300 with unlimited update capability. There are a couple of other after market stand alone scanners out there as well, but they have considerably less diagnostic capability than the Durametric system.
  18. JFP in PA
    I am not even remotely suggesting a new MAF, I'm suggesting that experience has shown that a dirty MAF, or one with resistance in the circuit can result in idle issues that do not throw codes, Futher, I am suggesting that you do more diagnostics, such as reading the MAF values vs. specs, and looking at the MAF sensor to see if it is simply dirty. Far too many people simply throw expensive parts at a vehicle without really knowing what it needs...........
  19. JFP in PA
    P0452 indicates a short to ground in the system, which may be an electrical issue outside the tanks sensor itself.
  20. JFP in PA
    That does not mean anything. You need to take a look at your MAF, looking for dirt build up. If it is there, you need to use a correct MAF cleaner to remove it as you cannot touch the sensor itself. Another alternative would be to check your MAF values using a Porsche specific scan tool.
  21. JFP in PA
    Year of the car is always useful......
  22. JFP in PA
    No picture attached. Quite often, erratic idle issues are MAF related, a dirty sensor or corrosion at the electrical connectors being a common fault.
  23. JFP in PA
    Welcome to RennTech I can tell that your mechanic does not specialize in Porsches. This is a topic that has been discussed many times, and a good search would help you fill in the details. In a nutshell, cold air systems are a waste of time and money on these cars as it came from the factory with a very well designed one already installed. Your current fuel injectors are capable of delivering more than enough fuel, so putting in larger ones is also a general waste of time and money. They also won't add anything as the DME will step in and throttle them back to maintain the correct A/F ratios. The next big "fix" to produce more power are the aftermarket reflashes of the DME, which typically produce increases that fall with in statistical error range of the factory output on a dyno. Larger throttle bodies and trick intake plenums also add little if anything on the dyno. The best suggestion I would give to you is to remain very circumspect of performance gain claims you see in internet ads for companies that sell these mods; most are pretty much hot air. So the question becomes how to get more power; the unfortunate answer is to spend a lot of money. These engines are a system and need to be approached as such. It is very possible to generate a lot of power, nearly twice the factory output, but it comes at a stiff price: Approaching $20K for a completely redone engine out of one of the premier M96 engine builders.
  24. JFP in PA
    According to Porsche, the correct fuel gauge sender for your car is a 996-620-832-02 (per board sponsor Sunset Porsche). Sunset Porsche listing for 2004 Boxster s fuel pump
  25. JFP in PA
    To disprove your logic, we have never seen a composite impeller that slipped on the shaft from the jamming you propose, but have removed a mountain of them with blade tips worn away from contact with the engine cases after the shaft bearings wore loose and the impeller began to wobble. Porsche acutally tested and evaluated both composite and metal impeller pumps, and went with the composite design as a scraficial componet to prevent permanent case damage. But by all means, feel free to use what ever you please; after all, it is your car, and your money; and you will the one that has to deal with the consequences.
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