Alfa Romeo 1.9mjet 16v 156 150 hp and 147 140cv

[zioweb]

Hello guys, I ask for your help/opinion on an issue affecting two of my friends.
These are two alfa romeo, 156 150 hp and 147 140cv.
Both, in different times, of course, started to go into recovery while ? at full load with the following error in the ecu:

P0238 - pressure Sensor turbocharger

These are two cars that are fully original. The 147 has not yet seen the mechanic, while the 156 has done inside and out for a p? without success. They changed the sensors and other things (I don't have the detail?) without a result.

It never happened to you a similar problem?

I thought the same sensor that can be gone, or the wastegate not opening correctly...

advice?

[sa80libero]

change the sensor, an overboost placed on the 147 under the FILTER BOX, and solve the 100x100 the problem.

[Tom79]

commonly called mass air flow sensor...anyway, before I change the controls in the diagnosis if the value of the air mass measured corresponds to the value of the mass air objective. If it does not match the mass air flow sensor or to clean or change the...

[neo]

Hi,according to me, the problem and the sensor sovralimentazione.Con time you fill up with oil and sporcizia.Smontare and clean

[antonio.o]

Hi,according to me, the problem and the sensor sovralimentazione.Con time you fill up with oil and sporcizia.Smontare and clean

I had the same problem on a 159 120 ps 8v disassembled to clean the sensor, everything is ok.

[zioweb]

so, let me understand one thing: the sensor turbocharger ? the one that says sa80******? that is under the filter box?

on the 156 from just that one error, on the 147 was also an error on the mass air flow sensor... and for that I thought of him, at least try to clean it and see if you still...

[neo]

It is located on the intake manifold

[zioweb]

Perfect.
I hope to be able to try to clean it over the weekend and I will tell you.

[antonio.o]

Perfect.
I hope to be able to try to clean it over the weekend and I will tell you.

be careful when you clean, and very delicate, I did it with a brush with soft bristles and a drizzle of compressed air.
hello.

[zioweb]

Without dilenuenti or liquids?