Technical New issue Old problem

[Chopin]

The Twinair stopped rapidly after a Coilpack fail (it's a 2 cylinder thing - no mercy). I had the car taken home as I had 2 new ones and it started immediately they were replaced HOWEVER it is in intermittant limp mode.. I put my fairly useless and cheap OBD reader on but no faults show. My thoughts are the software may need reset but that does sound a bit over the top for a simple fail. Anyone got experience of the same?

 

[steveras57]

You need a decent code reader or MES software!- you can bet there's code in there somewhere?- but cheep generic scanners cant access them!.

 

[Mike1alike]

That’s very typical TwinAir behaviour after a coilpack failure. When one coil dies, the ECU logs misfire faults and can drop into a catalyst-protection limp mode.
Even after replacing the coils, the ECU can stay in a reduced-power strategy until the fault memory and misfire counters are properly cleared. Cheap generic OBD readers often won’t show or clear TwinAir-specific faults.
What to do next:
Scan it with Multiecuscan or dealer-level diagnostics and clear all engine faults
Check live data for misfire counters
Make sure both new coils are the correct spec and the connectors are clean and fully seated
No drama needed, it’s almost always just stored fault logic still active after the original coil failure.

 

[Chopin]

Thanks guys - will follow your advice and revert

 

[Chopin]

As normal always more than one issue got a P0325-12 code being a knock sensor. Mechanic says common for either sensor or coil to help the other to fail. Just going to order one now so next question... Where is it located?

 

[JD2023]

Twinair Knock Sensor error P0325-12 | FIAT Panda (2012+)

Just doing my annual maintenance and noticed this error on Multiecuscan. Car seems to run OK with the normal twin cylinder sounds. I have cleared the code and will see if it comes back. If it does where is the sensor located on the block?

www.fiatforum.com

I Believe Knock sensor code can also be triggered by poor octane fuel

 

[Chopin]

I saw this but it was a lot negative with the photos not showing and the guy not happy to get into the replacement- hoping to hear from someone who has succeeded- re the fuel I started using 98 after they started watering it down with ethanol