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Ahsai

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Ahsai last won the day on October 13

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About Ahsai

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  • Present cars
    2003 996 Coupe

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  1. What RFM said. I needed almost 10quarts after I rebuilt my engine.
  2. Ahsai

    Crank but no fire

    Yup, dme is not ready to fire the engine. Hiw about the clutch switch?
  3. Ahsai

    Noise after starting?

    I heard it can be cleaned so you can bet your labor. Or you can just replace it with a brand new Bosch SR0808N for $200.
  4. Ahsai

    Crank but no fire

    Yes, pin 66 as mentioned in one of my posts above. That will tell you if the DME is ready to crank the starter and start the engine.
  5. Ahsai

    Crank but no fire

    I thought it was ~8v p-p too but the scope indicates a 10:1 probe is used. Crash/roll sensor makes sense. If no fuel injector firing, there will likely be no sparks too. Can you scan the SRS system for fault codes?
  6. Ahsai

    Crank but no fire

    Nice meter :) Is that ~60v peak to peak? The cranking speed looks good. The broken tooth signal is there as well. How about cam sensor signal? Your airbag theory sounds interesting. Is the thinking srs issue will make the dme disable the engine? The srs system should talk to the dme on one of the K lines. If I rip out my srs module, I expect the engine should still fire up although I never tried. No sparks either, right? Can't think of why the dme is not firing. If the cam sensors signal is not there, there should be error codes.
  7. Ahsai

    Crank but no fire

    It's entirely possible you have a wiring issue. There are 3 connections - the sensor plug, the X59 connector in the engine bay and the DME connector. When the senor is unplugged, you may want to check for continuity between the sensor socket and the DME pins. You should also ohm out the sensor.
  8. Ahsai

    Crank but no fire

    The tech bounce should be obvious. I'd say the needle raises about 1/8"~1/4" from the rest position.
  9. The M10 long bolt the alternator pivots on should be 34ftlb if it's grade 8.8. It's 48ftlb if it's grade 10.9. No idea about the second bolt on the alternator. The idle pulley M8 should be 17ftlb Note M10 means the shank of the bolt is 10mm in diameter and M8 means 8mm.
  10. You need to add distilled water to the coolant to get a 50/50 mix. It IS inlb, which is inch x lb, the proper unit for torque. 90inlb means a force of e.g. 90lb applied at 1inch from the bolt or 1lb applied at 90inches from the bolt, or any combo that multiply to 90inlb.
  11. The small bolts on the cover is 7.5ftlb. Best to use an inlb torque wrench set to 90inlb.
  12. Sure. 1) See figure 4 here. Yes, a new crush washer would be ideal. Also you may want to use a vacuum tool to refill. 2) No gasket sealer. There should be a metal gasket 99610133150 for that coolant lid/bracket 3) I'll get back to you on this
  13. I agree the voltage reading is strange like you explained. I wonder if one of the 2 wires (+5v power and signal) is shorted to +12v somewhere. If you can measure the DME C7 pin (red/violet wire), that would be good. It should be +5v feeding the two cam sensors.
  14. New Bosch alternator AL0815N. Btw, best time to diagnose those codes you have while the alternator is out
  15. That coolant lid/bracket can be replaced $380 from sunset porsche parts 99710102100 You can alao try to find a used one. Coolant will pour out if you remove the lid without draining the coolant first. Suggest you upgrade to the 997 150A new alternator from Bosch (cheaper).
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