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coleta

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Everything posted by coleta

  1. tholyoak, you mentioned the deviation spec. is +/- 6 degrees. Where did up get this spec from? I found an old Porsche workbook that shows it at +/- 25, believe it or not. I'm gonna try and scan it so I can post it.
  2. harperb, what did you originally bring your car in for? What were the symptoms?
  3. Thanks JFP. Great links. snorth54 post seems to support my above claim that deviation never changes because it's a value that is only calculated during cranking, because it's a reflection of base mechanical timing. He recorded: The camshaft position 1 deviation is always 1.28 regardless of RPM The camshaft position 2 deviation is always -0-09 regardless of RPM Actual angle is totally different and does change dynamically because it displays, not the mechanical base timing, but the actual movement of the variocam mechanism. He notes: At 3522 RPM the Spec angle for inlet camshaft bank 1 is -40 and the Spec angle for camshaft bank 2 is -40 At 3522 RPM the Actual angle for inlet camshaft bank 1 is -39.65 and the Spec angle for camshaft bank 2 is -40.12 The deviation and actual values should mean the same thing regardless of whether it's variocam or variocam plus. The only differece would be in the actual values themselves, @25 max for the former and @ 40 for the latter. Based on your experience, does this make sense (as this is all theoretical)? Thanks again
  4. JFP, This is true. But it seems the value that is read while the car is running is a value that the DME calculated during cranking. So if the relationship of the cams to crank changed while the car was running and the car has not been turned off and re-cranked the deviation value will not change. The car would have to be re-started so that during cranking the DME can recheck this calculation and then display the new value while running. I know many cars that work like this, but I don't know if this is the case with Porsche. If you or anybody else has actually seen the deviation values change while the car is running, then this will prove that Porsche's system is different than most out there.
  5. JFP, I was under the impression that the deviation values was calculated at cranking and was not "live" data. So if the IMS went, the only way to see a change would be to note the deviation, turn the car off and then on again and recheck to see if it changed. Is this right? If it's not, have you ever seen deviation values change while the car is running? Thanks again.
  6. JFP, Which variocam readings are you refering to, the actual angle or the deviation? Thanks
  7. mudman2, Could you give some specific examples of what you've seen with this fault and under what conditions they went away? Thanks
  8. Does this happen regardless of tire brand? Any one have an explanation as to why this happens?
  9. Hi Loren,

    Where do you get all those instructions, parts diagrams, and part #'s from? I think I even saw you post 2010 info. Would I be able to purchase this program? Thanks

  10. RFM, Could you share with us: 1. what normal HC,CO,CO2,O2 reading are? 2. are they checked before or after the cats? 3. under what conditions? at idle? 3000 rpm? or is it while driving under load? 4. what readings with HC, CO,CO2,O2 indicate bad cats? And thanks for the temp difference info.
  11. Hi Harold,

    What ever happened with your P1349 cam fault?

    Thanks

  12. Great news. Do you know how they were able to isolate it to the cat.?
  13. Hi Dutch,

    Are your 5 transmitters still working properly? How many miles have you gone with this set up

  14. otisdriftwood, Could you read out the oxygen sensing,tra, and fra values with your tester before replacing the aos? I just want it for reference. Thanks
  15. otisdriftwood,

    Could you read out the oxygen sensing,tra, and fra values with your tester before replacing the aos? I just want it for reference. Thanks

  16. Thanks RFM. Your point being that the stretch in the chain can be compensated for with NO parts replaced, only a re-timing because the stretch is minor. Right?
  17. RFM: You've posted several times this can be fixed by retiming. Have you had the chance to note the before and after actual values on the cam deviations? Thanks
  18. Hi Timothy:

    What ever happened with your P0021 fault?

  19. Hi Danny:

    What ever happened with your 0.4 bar turbo glitch?

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