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chucklong

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About chucklong

  • Rank
    Contributing Member

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  • Gender
    Male

Profile Fields

  • From
    Maryland, USA
  • Porsche Club
    No
  • Present cars
    2008 Cayenne S
  • Future cars
    Porsche 911 Turbo X2
  • Former cars
    Mustang Cobra
    Mustang GT
    BMW 320
    Delica Turbo D
    Jeep Cherokee Chief

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  1. Hi, I have a 2008 cayenne s with 105k miles. Started getting p0455 code frequently. Replaced gas cap, purge valve, diagnostic pump and carbon canister. Everything is new Porsche part. Well I smoke tested the system today. Started with the t connector on vacuum pump-nothing. Disconnected purge valve and smoked back to carbon canister. The filter on the carbon canister is smoking. Question: can this be the source of the large leak p0455 code? Thanks, Chuck in Missouri.
  2. Greetings, I was on my way back from Daytona Beach after attending the Rolex24. Driving north on I-95 with the cruise control on, the truck started hesitating and eventually the CEL came on. I pulled over and smoke was coming off the back of the engine near the injection pump. I drove the truck home 300 miles in this condition. The engine idled fine (never shut it off) and the truck got 20 mpg all the way back. I pulled the codes and P1021/P1026 popped. At low speed and light throttle, it seems fine. Today I started it and it was rough for a few minutes and then started to smooth out.
  3. I have a 2008 Cayenne S with 70k that is stock. Four months ago, I came to a stop at a red light and noticed the idle was rough. Initially I thought it may be bad gas so I got some fuel injector cleaner. Then the CEL came on. I pulled the codes with my Durametric software. No misfires, just Bank 1 P1371, P1351, and P1352 codes. Did a scan on this message board for the topic. I ordered a new valve lift actuator and replaced- No change. I took the Bank 1 actuator and installed it on the Bank 2 side- No change. I replaced all the spark plugs- No change. Changed the battery- no change.
  4. I have a 2008 Cayenne S with 65k that is stock. Two weeks ago, I came to a stop at a red light and noticed the idle was rough. Initially I thought it may be bad gas so I got some fuel injector cleaner. Then the CEL came on. I pulled the codes with my Durametric software. No misfires, just Bank 1 1371. Did a scan on this message board on the topic. I ordered a new valve lift actuator and replaced- No change. I took the Bank 1 actuator and installed it on the Bank 2 side- No change. I replaced all the spark plugs- No change. Other than the idle and CEL, the truck runs fine, has great p
  5. The Durametric program listed the fault as P0021, and I almost bought a new Varocam solenoid. The Porsche dealer said my scanner listed the wrong code and they said it was a P2181. The lesson I take away from this is that the Durametric may be right, or maybe not. If the part is expensive, you may want a second opinion.
  6. A few months ago I posted a topic concerning my 2008 Cayenne S getting a CEL and fault code of P0021, implausible signal. I reset the light several times with the durametric and at some points it would go 1500 plus miles between tripping the CEL. This week, it starting tripping it every other day. So I took the truck to the local NJ Porsche dealer this morning. I told them my findings. An hour after driving off in a 2012 Panamera S loaner with a fresh cup of coffee, the service writer called me and said the code they pulled was a P2181, coolant performance. They said the thermostat was s
  7. Pls see attached file for everything you ever wanted to know about the cylinder heads. porsche CYLINDER HEAD.pdf
  8. Gents, The CEL came on last Friday so I hooked up the Durametric and ran the fault test. The only code to come up was 0021. I reset the fault and it came back on within 60 miles. The car runs perfectly fine in all areas of operation and rpm. I did a little research on this and checked the camshaft deviation while the engine was running, bank 1 read 2.62 CA and bank 2 read .37 CA. If someone can point me in the right direction on how to accomplish the below maintenance, I would really appreciate it. Semper Fi P0021 Adjustment of Inlet Camshaft in relation to Crankshaft, Bank 2
  9. Ok, thanks. The vehicles works exceptional in every manner of things pertaining to.
  10. I have a 2008 Cayenne S with 45k miles. When it is colder than about 50F the engine warms up normally but a lot of condensation "smoke" comes out of the exhaust. Normally in most cars the exhaust system would warm up and the condensation smokes goes away. I can drive 100 miles in cold weather and this continues. There are no trouble codes on my Durametric and oil analysis shows no water/coolant in the oil. The engines does not burn excessive amounts of oil. This only happens when it gets cold. Any ideas what could cause this or is it normal?
  11. I have a 2008 Cayenne S. When I purchased the truck last year with 27k miles it had the same problem. The dealer replaced the door seals and the problem went away.
  12. I just bought a 2008 Cayenne S with 25k miles and factory warranty. I learned a lot about what to look for here on this forum, thank you. When driving my Cayenne in the cold weather of Washington DC, enormous amounts of water vapor come out of the exhaust pipes when the vehicle is cold and even when it is warmed up to operating temp. I had the dealer look at and they replaced the fuel pump under a recent recall and the truck still does it. I know the science behind why water vapor occurs, but once the exhaust is hot it usually goes away. Does the design the the Cayenne exhaust make this v
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