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DTC p0240 on Grande Punto Abarth
Posted: 18 Jul 2011, 21:09
by EnIgMa
Hi,
a guy on another forum has got this error.
He own a grande punto abarth, so the ecu is bosch me7.9.10
who know what is it exactly?
Re: DTC p0240 on Grande Punto Abarth
Posted: 19 Jul 2011, 10:55
by Juggers2k
P0240 is a generic EOBD code, so it's not specific to Fiat / Abarth.
Oddly though, it has 2 possible definitions, probably depending on whether the car uses forced induction (turbo/supercharger) or not:
P0240 - Manifold Absolute Pressure (MAP) sensor B, TC system - range / performance problem
P0240 - Turbocharger boost pressure sensor B / Supercharger boost pressure sensor B - low input
Common causes for both are intake / exhaust leaks, poor / degraded hose connections, or the sensors themselves.
Re: DTC p0240 on Grande Punto Abarth
Posted: 19 Jul 2011, 19:42
by EnIgMa
Thank you.
The car is turbocharged.
Right now i don't get what "sensor B" stands for...only one is for boost pressure, so why a B sensor and not the A sensor?
that's why i asked here
In that car, i know there are 3 sensors measuring the air pressure.
1 for ambient pressure placed on the chassis of the ecu. (barometer)
1 for intake air pressure (reading positive and negative pressure...for vacuum)
1 for boost pressure.
the error comes in random situations....usually while driving at constant speed (like 140km/h on the highway); so i don't think it could be any leak or degraded connections because it doesn't happen when the engine load is high.
probably it's caused by the sensor..