CAR WILL TURN OVER AND RUN FOR A FEW SECONDS AND STALL

  • Tiny
  • Paulr
  • 1999 Porsche 911
  • 85 miles

Had the heads rebuilt by a top shop when they were installed now the car will turn over and run for a few seconds and die. The heads were rebuilt 100 percent new gaskets. The car was down about a month. When u try and start it it runs rough for a few seconds and dies. It doesn't run long enough to build compression. It seems like a security problem except it did run for about 2 minutes once. I am a transmission and motor builder bit this is my first Porsche. It is a 99 911 carrera. Any ideas

Wednesday, February 22nd, 2012 AT 12:27 AM

6 Answers

  • Tiny
  • rasmataz
  • Member

You sure the valve timing is correct? If okay check fuel pressure

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Wednesday, February 22nd, 2012 AT 12:31 AM
  • Tiny
  • Paulr
  • Member

I'm as sure as I can be. I timed it off info from online. Any suggestions

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Wednesday, February 22nd, 2012 AT 3:19 AM
  • Tiny
  • rasmataz
  • Member

Did you put piston no.1 on its compression stroke/TDC and align the cam and crank sprockets as indicated in the repair manual? Also did you check the fuel pressure with a gauge to confirm the pressure if its within specs?

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Wednesday, February 22nd, 2012 AT 11:51 AM
  • Tiny
  • Paulr
  • Member

It's settings cam sensor a code out of range or performance.

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Wednesday, February 22nd, 2012 AT 4:11 PM
  • Tiny
  • rasmataz
  • Member

If its popping a camshaft sensor double check the wiring and the computer before you replace it-

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Wednesday, February 22nd, 2012 AT 8:33 PM
  • Tiny
  • Paulr
  • Member

Yeah that's what I did. It took awhile to figure out which one was cam sensor a. Thank u

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Thursday, February 23rd, 2012 AT 3:08 AM

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