drowning / jaloneo

Hello everyone, according to the FIAT147 indications, just point to check that the MAF pipe does not present air intakes (some slit in the clamp area ..) and if it wears PCV valve in aprofine lid, check its status (if you pull a lot of oil vapor), this is to discard possible failures. Greetings!!

Ismael, on the PCV, I just changed it does not make more than a month and a half, I check it. About the empty, can they cause me this detail?
On the MAF, listening to several mechanics, they had told me that I was already in the last or that I should replace, but with today and notice that it remains the same, it leaves me again in zeros.

Hello, the PCV, if the air entrance is after the flow rate, if it is open, you can falsify the measurement of this, to the idle. The empty ones, can come as they have told you, of the caudalimetro, which measures badly, but pay attention to the instructions of fellow Fiat147, get data and measure to be safer. Another possibility of empty can be a lack of fuel pressure on the ramp (problem in gasoline pump ..)
but first, step by step, check the flow. I can't tell you more. encourage and greetings !!

Hello everyone, there is a method to test the ECU, do not mention it since it is complex to carry out, I did not want to confuse anyone. About measuring I do it with oscilloscope, but in my opinion if you do not handle these methods only leads to more conflicts.

Hello everyone, I can tell you that I have seen approx 20 cars with that same problem, in the absence of info of the amount of air that enters the engine (MAF) the ECU limits the rpm of the engine approx to 2500 and those oscillations occur. In 1 ocation it was ECU and I clearly remember that I had no codes of breakdown, but nevertheless the check's light was permanently on ... I hope it serves him. Safe.