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Rob001

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Posts posted by Rob001

  1. Got a 2002 996TT (pre-most) with PCM1 and Bose sound system incl. rear subwoofer of which I would like to replace the head unit only and keeping the Bose amp and speaker setup. Probably covered a dozen times but reading mixed views on this especially 2 Ohm speakers and on output to the rear subwoofer which has his own amp so what exactly to be done?

    Can someone help me with wiring diagram for 2002 pre-most with Bose and rear subwoofer as I can not find out from were the rear sub wiring is routed from.

  2. There is not much to understand.

    Just download the two RAR files I've sent you in the PM, unrar and then burn the image (.ccd file) to a CD with clone CD.

    Or give me a FTP server addres for me to upload the image file to burn for you including clone CD or maybe Richard can send you an image file copy of his Porsche CD......

    Thinking about it when removing navigation CD unit to check the part number, disconnect your battery, remove CD unit, remove all electical connectors from CD unit only (is only one white multicable plug and the GPS antanna), power up and see what your radio is doing now and pray it will start up normally. Just a thought.

  3. That's corerct but the idea is to get past the "insert CD screen".

    Since he is not using navigation anyways he got nothing to loose.

    So I would try Opel Siemens 2010-2011 for NCDx system which is also working porsche Porsche PCM1 16 bit as it is same system and run it.

  4. As a follow up the stutter mysteriously cured by itself... kind off..

    I suspect is was bad gas as the car was not used for a while as I'm often working overseas. I know that the ECU is flashed (unknown tune to me by previous owner) and I think the stutter was related to too much timing and the knock retard due to bad fuel. As a preventive measurement I changed the diverter valves (710N) and pre cat wide band O2 sensors. Next will be a new UMW tune based on a proper data log Kevin is selling.

  5. Yes I'm using a generic Porsche factory PIWIS tester, no Durametric or simular.

    Narrowed down the symptom and it seems that only under boost pressure the stutter occurs and the boost pressure stays then low at 0.3 to 0.4 bar. As the stutter is not constant, when no stutter boost pressure goes up to 0.9 to 1 bar. Stuck or poor operating diverter valve issue?

  6. My 996 turbo with 60K miles is stuttering under medium to full load starting from approx. 2800 RPM and also from time to time misfire noises from exhaust. Under slight load no stutter or not noticeable I got access to a PIWIS tester and no error codes at DME read out. In my opinion it is ignition related and I suspect the coil packs. Any other ideas or aeras to check? Could it be the MAF of O2 sensors?

  7. Got an 996 engine with failed connection rods and probably crankshaft as it is ticking like crazy. The engine is from MY1998.

    I also got an engine from 2001 with crack in cylinder sleeve but further ok.

    Now is my question is it possible to use the MY2001 crankshaft into a MY1998 engine.

    Are there any differences? What else to watch out for when replacing crankshaft? I know it is not the best approach for rebuilding but this is all I got.

    Thanks!

  8. An IMS noise is usually not going to go away with revs or when the engine warms up. Sounds more like a tappet or a chain tensioner to me. Have you tried listening with a screw driver pressed against the engine and your cheek bone near your ear to try to locate the noise? I had a sticking lifter that made a clicking noise before I replaced all of them. And now I have a tapping that is a sticking tensioner that needs to be replaced. It akes a while to pump up on first starting the car but goes away when it warns up a bit or with RPMs. Planning on doing that this spring, probably with the IMS upgrade.

    If it is the IMS bearing then the noise should be coming from the trans end of the engine. There is a lot of paranoia on the IMS, and if it fails the results are disastrous. But there are many many sources of tapping or clicking noises unrelated to the IMS.

    Agreed that not every tick has to be an IMS issue and I'm for sure that this is not the case here .

    I still drive it daily and not trying to be carefull being affraid something will give, this is not the car for it. (however I sometimes wish it did as a good excuse for a major engine upgrade..)

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