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-   -   Need help with Durametric findings (http://986forum.com/forums/showthread.php?t=54535)

Jamesp 10-22-2014 03:23 PM

Need help with Durametric findings
 
At idle revving slightly the durametric shows that the "actual angle for inlet camshaft bank 2" follows along with bank one, and the spec angle for a time, then it goes bonkers and is all over the map, completely random and the car runs terribly. A moment later its back in phase and the car runs great. What influences this measurement? could it be the Hall effect sensor or wiring, or could it be the variocam?

Reebuck1 10-22-2014 05:36 PM

Sound to me like the Variocam to me. It happened to me and it was the connection between the varicam and the motor wiring harness.

Jager 10-22-2014 06:23 PM

Any Trouble Codes?

Jamesp 10-23-2014 01:14 PM

Quote:

Originally Posted by Jager (Post 422624)
Any Trouble Codes?

These

http://986forum.com/forums/uploads01...1414098848.jpg

Jamesp 11-01-2014 11:46 AM

I replaced the bank 2 camshaft hall effect sensor, Plugged in the SAI pump, and ran into another code. This is the only code existing now:

P1331 Porsche fault code 903 camshaft bank 2 driver

At idle,

spec. angle for inlet camshaft bank 2 = 0
spec. angle for inlet camshaft bank 1 = -3 to 0.6
actual angle for inlet camshaft bank 2 = -2.5 to .5
actual angle for inlet camshaft bank 1 = -8.5 to .5

The spec. angle for inlet camshaft bank 2 never changes.

So it appears the cam timing may be an issue. Can anyone out there with experience in this area comment?

Thanks - Jim

JFP in PA 11-01-2014 12:37 PM

Quote:

Originally Posted by Jamesp (Post 423686)
The spec. angle for inlet camshaft bank 2 never changes.

So it appears the cam timing may be an issue. Can anyone out there with experience in this area comment?

Thanks - Jim


That is because P1331 indicates no signal from sensor #2, most likely a disconnection somewhere in the harness.

Jamesp 11-01-2014 01:31 PM

Quote:

Originally Posted by JFP in PA (Post 423688)
That is because P1331 indicates no signal from sensor #2, most likely a disconnection somewhere in the harness.

Thanks, JFP. I'll have to buzz out the harness.

Jamesp 11-29-2014 03:01 PM

Reebuck1 Wins! The code P1331 description pointed to the hall effect sensor, but the actual cause was a loose connector on the Variocam! I clearly missed snapping the catch on the connector and it slipped off after awhile. Man are these cars fun to drive! Mine has been sitting until I could troubleshoot the loose connector with a Durametric and figure out the loose connector on the Variocam. I'm no longer stuck in convertible Mustang GT land as a daily driver! Thanks to everyone who chimed in to help! This thing once again idles at a steady 800 rpm and runs like the Tasmanian Devil!


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