Technical Fiat 500 0.9 twinair turbo 2012 PROBLEMS COLD START

[Gurvar556]

Hello!

I bought a twinair last week. It seems to HATE being cold started.
It is around -5 to -15 degrees celsius outside. When I come out in the morning it starts on first try, but the whole car vibrating and shakes. After 30sec to 1 min the engine dies. When i try start again it shuts almost directly. But if I give it a pump on the gaspedal it’s finally starts. But after 30 seconds it goes to limp mode. After I letting it running for 5 mins I restart the car and it works like nothing happend.

We do have one code ”Misfire cylinder 2” (only when engine is cold)

Where should I start??

Thanks. /// sorry for my bad english, im swede..

 

[varesecrazy]

Hi and welcome

Having only 2 spark plugs.. they have a hard life

I would change them NOW

These motors need special oil too..
( it is used to power the fuel injectors..)
so oil that is at the wrong thickness might not help

Your English was fine
Tak..

Charlie

 

[Gurvar556]

Hi and welcome

Having only 2 spark plugs.. they have a hard life

I would change them NOW

These motors need special oil too..
( it is used to power the fuel injectors..)
so oil that is at the wrong thickness might not help

Your English was fine
Tak..

Charlie

Thanks Charlie

I’ll change em right away!

What special oil? Is it 5W-40 ACEA C3 It says that in manual and when I look up on internet.

Thanks again

 

[varesecrazy]

Thanks
Is it 5W-40 ACEA C3 It says that in manual and when I look up on internet.

There was 2 options of oil grade.. depending on build year

 

[Gurvar556]

Anyways, I’ve replaced sparkplugs & changed oil yesterday to 5W-40 ACEA C3. Now it doesn’t even wanna start ???

I feel im about to begin hate this car ?

 

[jrkitching]

I'd be suspicious of the uniair module; it's a reasonably common issue with these cars. At this point, it might help to run a proper diagnostic using MES or Examiner; a generic code reader is unlikely to be sufficient.

You may be about to discover the reason why the previous owner sold it.

 

[chris3234]

It it turning over we'll an a good speed?
As the engine needs to build up good.oil pressure to actuate the valve to enable it to run

 

[Gurvar556]

We have change sparkplugs and oil. Same thing still.. Now we did clean a vent to uniair module. Hope it works better tomorrow. I’ll update you thanks folks

 

[John202020]

Whilst not directly connected does the engine crank over on the starter quickly, is the battery in good condition given the cold temperature as I understand oil pressure is important?

 

[Gurvar556]

Hello.

It didn't work by cleaning the "filter"/vent".
We do think the whole uniair/multiair module is finished.. They are not cheap.. Is there anything else I can try before replacing the whole module??

 

[varesecrazy]

Hello.

It didn't work by cleaning the "filter"/vent".
We do think the whole uniair/multiair module is finished.. They are not cheap.. Is there anything else I can try before replacing the whole module??

Why is it temperature related..??

The fact it was ok when warm only a few days ago tells me it is worth investigating other basic service items

 

[Gurvar556]

Sorry for not beeing active!

Why is it temperature related..??

The fact it was ok when warm only a few days ago tells me it is worth investigating other basic service items

And sorry for no answer.
Ye its temperature related cuz when I use warm garage (at work) it starts like there was nothing. But in the cold morning (-5 to -15 minus degrees celsius) its horrible to start.

But yeah last monday they picked up my fiat and took it 4hrs away from my town so investigate the car. I’ll update you when they got a report!

We think it’s the uniair /twinair module (not a fun cost)