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JFP in PA

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Everything posted by JFP in PA

  1. JFP in PA
    Do a search, servicing the 991 air filters has been covered before. Not fun, but doable.
  2. JFP in PA
    More often than not, when we get a car in with this problem post DIY ignition switch install, the owner knocked one (or both) of the pedal switch connections loose.
  3. JFP in PA
    To put the oil source in perspective, the cylinder heads are one of the hottest and dirtiest sources of oil. There have also been reports of lifter noise and VarioCam problems when oil is drawn from the head, both of which problems went away when the oil feed line was disconnected. The actual reason only one retrofit kit manufacturer uses oil coming from the filter is that this method is protected by a patent; but the filter area oil is both cooler and just filtered as well. If it wasn't patented, others would use it as it is a better oil source.
  4. JFP in PA
    OK, my next move would be to have the car scanned with a Porsche specific scan tool and look at the actual coolant temperature values to make sure they are were they should be. If everything is good, I would read and note all codes, then clear them and see if they return. We have seen fault codes are P2181 (thermostat stuck open) and P3081 (engine coolant temperature implausible) on GT cars caused is a blocked valve on the trans cooler (photo), but your car should not have that.
  5. JFP in PA
    Not sure, he could have replace the thermostat, which is different.
  6. JFP in PA
    The vehicle will code because the pump is in effective. Usually the valve sticks due to build up, but they can fail electrically as well.
  7. JFP in PA
    Only for shops, or individuals, who did not follow through on the process and register the retrofit. We see cars regularly for PPI's that claim to have an LN retrofit, but without supporting paperwork from the shop that did it, we totally discount the claim and warn the buyer as much. The problem with retrofits (excepting the IMS Solution, which is visually obvious) is no provenance, no value; which also means that the buyer now needs to factor doing the retrofit into the price, lowing it further. LN has been proactive in supporting end users than have one of their retrofits. After years of unsupported claims, and even some history of counterfeit door jam stickers, now they have useful tool for buyer's and sellers that went with installers that did the job right and protected their interests.
  8. JFP in PA
    P0446 is for an EVAP shutoff valve malfunction, usually because the purge like is blocked. It has nothing to do with the cams.
  9. JFP in PA
    Being emissions related codes, they could to preserve the three way cats.
  10. JFP in PA
    I would connect a Porsche specific scan tool and check the actual coolant temperature readings, you may have a bad coolant temp sensor.
  11. JFP in PA
    P1118 Oxygen Sensor Heating after TWC Bank 2. You have a code for the rear O2 sensor heating element on bank 2. When we see this code in a transient mode (goes away and comes back), it is often after the car has been wet (rain, ran through standing water, etc.). Does any of that apply?
  12. JFP in PA
    Check the resistance of each of the coil packs. Resistance between terminal 1 and terminal 15 at 20°C: 0.3 - 0.7 ohms. Any coil pack that is drastically different should be replaced.
  13. JFP in PA
    Depends. We sometimes get car is that had been running fine, and then developed problems after a rainy spell or they had just been washed. Inspection showed multiple coils with cracks that were effected by moisture. You need to pull the coils and closely look at them for cracks, you can also check them resistance at the same time. Coils are like light bulbs, eventually they will fail and have to be replaced.
  14. JFP in PA
    More often than plugs, old or cracked coil packs lead to misfires. Pull the coil packs and check them.
  15. JFP in PA
    Welcome to RennTech Some of the replacement MAF units require some reprogramming using either a PST II or PIWIS system in order to work correctly.
  16. JFP in PA
    The DME gets the single from the temperature sensor and communicates with the cluster via CAN Bus. Disconnecting the temp sensor throws a "no sensor" code, but does not mean that the sensor is good by default. The coolant temp sensor can be read live (actual temp values) using a Porsche scan tool. If suspect bad, replace it, it is not that expensive or difficult.
  17. JFP in PA
    LN Engineering has just announced online access to their database of installed retrofit bearings. You can search by the LN door sticker number, or by VIN number to see if an LN bearing has been installed, when it was done, who did it, and the mileage at that time it was installed. Caveats are that the installer had to register the installation, which not all did, and assumes the same engine is still in the car. This should help those looking at used cars with claimed installed retrofits determine if the claim is real. http://imsretrofit.com/ims-check/
  18. JFP in PA
    The only method I am aware of is to use a PIWIS unit.
  19. JFP in PA
    If there is a large amount of ferrous metal, it really does not matter where it came from, the engine has to come apart.
  20. JFP in PA
    Usually more like the other way around. When the valve lift system goes haywire, you can get strange O2 sensor readings as the mixture has gone off kilter. Look at the valve control system first. You may still have a failing O2 sensor, but I rather doubt it.
  21. JFP in PA
    No apologies necessary
  22. JFP in PA
    When the Durametric triggers the VarioCam units, you should see the real time values jump as well. .
  23. JFP in PA
    Sorry for the typo, it should have read "fluid temperature sensor" The DME monitor's the sensor electrically and converts that signal into temperature; when the limit is reached in the DME's softweare, the fans switch on until the temperature drops.
  24. JFP in PA
    To my knowledge, there has never been an IMS recall on any model. Porsche was hit with a class action over the IMS, but that did not result in a recall.
  25. JFP in PA
    Pull the oil filter and check it for debris. If you find any, check to see if it is ferrous (attracted to a magnet). If you find ferrous debris, you have a major issue, if there is none, I would start investigating the noise further.
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