Intake Phase Variator angle - Alfa 159 2.2JTS

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Ian_UK1
Posts: 3
Joined: 04 Dec 2011, 14:14
Location: Manchester, UK

Intake Phase Variator angle - Alfa 159 2.2JTS

Post by Ian_UK1 »

Firstly, thank you for a great product - your software does everything I could wish for and more.

I've only found one issue so far - the Intake cam phase variator angle in degrees. At tickover, this shows a desired value of 0.000 degrees but a measured value of 34 degrees. If I blip the throttle, the desired value changes to a few degrees negative but the measured value changes to -263 degrees!! The values don't change smoothly up and down but jump from one value to another

I thought at first that it might be a sensor or timing problem on the car, but the engine runs normally and there are no fault codes stored in the Motronic control unit. If the variator was over 30 degrees away from the desired value however, it would definitely have thrown codes. And of course a value of -263 degrees is impossible and again would have thrown an unfeasible code. I'm therefore wondering if the FES software is possibly misinterpreting the data?

As an aside, the values for desired and actual for the exhaust phase variator are exactly as expected and match to within a fraction of a degree within a very short time when changing the engine speed. The values also scale up and down smoothly.

Ian
Ian from Manchester UK

Current FIAT Group car: Alfa 159 Sportwagon 2.2 JTS
Previous FIAT Group cars: Alfa 156 2.5, Alfa 164 3.0, Alfa 75 3.0
Other Current Cars: Porsche 997S Gen-2 PDK, BMW Z4 sDrive 23i
yani
Site Admin
Posts: 1173
Joined: 06 Nov 2009, 16:40

Re: Intake Phase Variator angle - Alfa 159 2.2JTS

Post by yani »

This is a bug in current version... It is already fixed for next release.
Thanks for reporting it.
Ian_UK1
Posts: 3
Joined: 04 Dec 2011, 14:14
Location: Manchester, UK

Re: Intake Phase Variator angle - Alfa 159 2.2JTS

Post by Ian_UK1 »

Many thanks for the prompt response.
Ian from Manchester UK

Current FIAT Group car: Alfa 159 Sportwagon 2.2 JTS
Previous FIAT Group cars: Alfa 156 2.5, Alfa 164 3.0, Alfa 75 3.0
Other Current Cars: Porsche 997S Gen-2 PDK, BMW Z4 sDrive 23i
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