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Ahsai

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Ahsai last won the day on October 13

Ahsai had the most liked content!

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About Ahsai

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  • Present cars
    2003 996 Coupe

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  1. Glad to hear you got it sorted without splitting the case!
  2. I remember your case. it was a long winding tough one to crack. It's hard to see corrosion on your photos. Could the green gooey stuff the Deoxit discoloring over time? The gooey stuff also looks like silicon grease? BTW, why it can't be a simple sensor failure? Just curious...
  3. You're welcome. It's likely you have the same problem on the other bank then. You may also want to check out this thread for more info
  4. You may want to try ebay for a used one. It's rolling the dice without an easy way to verify if it works before you put it on your car. I usually look for ones that were taken off lower mileage wrecked cars. You can search for "2004 boxster downpipe" on ebay.
  5. P0420 is the bank1 catalytic converter efficiency too low and has nothing to do with the O2 sensors, which have their own codes. You can use an OBDII scanner to monitor the signals of the O2 sensors on bank 1 to confirm the cat is indeed bad (when the post cat signal follows the swinging precat signal, the cat is bad). The only fix is to replace the cat.
  6. With the hold down bolt removed, can you rotate the sensor a bit? The sensor has a striaght shank so it should pull striaght out.
  7. Actually it should apply to you because the problem is on the crank side, which has only one style of gear.
  8. I found the thread https://rennlist.com/forums/996-forum/851856-ims-tube-totally-misaligned-2.html Please read carefully and see if it applies to your situation as there are different styles of IMS. Good luck!
  9. I see. I think I know what you're talking about. I have seen a post or two about the same problem and I'm trying to find those posts. If my memory serves, it's something to do with how the chain was installed on the crank and chain guide although it's difficult to imagine how because there are not many ways the chain could fit. I think the solution was to refit the chain and chain guide. I'll post again if I find those posts.
  10. I assume the tensioner of the chain has not been installed yet? Any free play if you push on the IMS chain paddle (via the tensioner hole)? Are you sure the chain matches the gears on the crank?
  11. Bank 1 cam sensor is at 8 o'clock from the alternator.
  12. Ahsai

    Crank but no fire

    Yeah, pin 66 of the DME. Should supply ground if it's happy.
  13. Ahsai

    Crank but no fire

    Yes, even running for one second it would produce fuel pressure. Can you tell if the DME activates the start lock relay while cranking? If so, the DME and immo are happy. Of course it still needs the on-going CPS signal to activate the coils/injectors/fuel pump.
  14. Ahsai

    Crank but no fire

    On a stock 996, the fuel pump (relay) will be run for only about a second when you turn the key to the last position before crank and stays there. Then once engine is running, the pump will keep running. Any sparks when cranking?
  15. Ahsai

    Crank but no fire

    Um, sounds more like fuel pressure to me. Still no tach bounce? Have you tried the waekon tester again? If there are sparks but still not fired up, it's very likely fuel related. If no sparks, given you have the correct voltage on the start lock relay (means immo and DME are happy) and no code, the only thing I can think of is CPS related.
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