Need help with Durametric findings

[Jamesp]

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]

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]

Any Trouble Codes?

[Jamesp]

Originally Posted by Jager

Any Trouble Codes?

These

[Jamesp]

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]

Originally Posted by Jamesp

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]

Originally Posted by JFP in PA

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]

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!