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Air Quantity - wrong
Posted: 04 Apr 2013, 04:43
by ARomeo
Alfa 156 1.8TS, 147 1.6TS 120 and others - Air Quantity is wrong. The Air Flow Signal showing 4.23V but the air quantity is 288kg/h which is impossible.
And why new version does not exist this parameter - Air Flow Signal? This is very important parameter
Re: Air Quantity - wrong
Posted: 29 May 2013, 11:48
by zaentzpantz
I think also there may be a bug in the display of desired air quantity. In the example below, as the engine speed rises from 800rpm to about 2000rpm, the air quantity and airflow voltage increase to follow the engine speed, however the desired intake air quantity limits and hits a very straight line between 37 sec and 60 sec after which it suddenly resumes tracking of the other parameters. This value of 11.4 is low and the exactly straight line is unusual as it is connected with the other naturally varying values, which makes me think it's something in the software that's losing track of the required signal.
- alfascan1.JPG (178.03 KiB) Viewed 3238 times
Re: Air Quantity - wrong
Posted: 09 Aug 2013, 12:57
by tzok
I've got a similar (but opposite) issue with a Multijet 1.3 90HP:
- 5714340500_1324402458.png (139.03 KiB) Viewed 3086 times
Zmierzona = MEASURED
Oczekiwana = DESIRED
masa powietrza = AIR QUANTITY
ciśnienie doładowania = BOOST PRESURE
obroty silnika = ENGINE SPEED