Technical where is idle air sensor

[bigdustyman]

been trying to find idle air sensor on my 2012 abarth can someone give me detailed description or pic of location i plan to clean it if i can find it

 

[A3jeroen]

Does it have one?
Revs are measured from cranksensor. Since yours (US) is a multiair, valves are hydraulic with engine oil. Do you have the right spec oil?

gr J

 

[Zardo]

Speed-density system
https://www.carthrottle.com/news/whats-difference-between-maf-and-speed-density-setups

As far as I know, the 2012 Abarth 500 multiair US version have multiair and no "idle air sensor"

Maybe you should start be describing symptoms rather than trying to find a non-existing sensor.

 

[bigdustyman]

ok i have read several posts stating same problems ie dying at stops under load like ac and excessive high idle at startup and they almost all mention idle air sensor

 

[Zardo]

It should have a MAP sensor

https://eper.fiatforum.com/en/Drawings/Detail/F/C/500A/85/102/47/20/0/SubSubGroup

and a diverter valve

https://eper.fiatforum.com/en/Drawings/Detail/F/C/500A/85/102/55/10/0/SubSubGroup

and a valve pressure regulator

https://eper.fiatforum.com/en/Drawings/Detail/F/C/500A/85/102/23/30/0/SubSubGroup

as it‘s multiair, it also measures the engine temperature precisely in order to calculate oil viscosity, this is needed for electrohydraulic valve timing. Changing the oil to some other non standard grade and changing viscosity will change the oil volume available per time unit for the intake valve actuators.

Other issues could be dirty and leaky injectors, a faulty lambda sensors, among others.

When the A/C is switched on the ECU will automatically raise idle RPM to compensate for the additional load.

 

[bigdustyman]

thanks for help