General Help needed, Car is randomly idling.

[gidi19]

Hi all,

Apologies if this has already been discussed elsewhere. I've tried looking and not found anything that matches my problem.

Fiat 500 L twinturbo 2015 plate.
Car has randomly started idling on start up. Will go away if I give the car some gas, but then will come back with a vengeance once the car reaches temp. I have scanned it with a cheapy scan tool and the error codes that come up are
P0221
P1120
P0121
P0351
P0352

On googling the error codes the P0221 and P0121 are in regards to a throttle position sensor.
And the P0351/P0352 are in regards to ignition coil packs.

Can anyone please point me in the right direction on what I should check/replace next,

In the video I have attached I am not pressing the accelerator, it is doing it by itself.

 

[varesecrazy]

Hi,
what is your history with the car?


Looking for recent work.. Or history of overheating..

On a basic 4 cyl engine, there is a recalibration procedure (1999 punto 1242 fire, as an example)


BUT the Twinair uses totally different kit...

I would look for an air leak 1st



IDEA: get the emissions checked


That will tell a story

Unburnt fuel, or rich / lean generally


Garages used to do that for a tenner


Tell us more