Technical Hi all. I have a fiat ducato motor home will a p2146 fault code that is driving me to dispair. Its had new injectors, ecu check and wiring checked .

[Georgina1502]

help

 

[Georgina1502]

help

I have a fiat 2.3 maxi ducato motor that's in limp mode fault code p2146. Replaced injectors had ecu checked and wiring still no joy any ideas only done 14,000 miles on a 2017 plate

 

[theoneandonly]

From my list
P2146/12 Injector system power supply
P2146Group 1 Injector Command
More in depth info in these thtreads
There is a simular thread here

It’s over before it’s even started! | FIAT Motorhomes / Campervans

What an absolute disappointment! We are just on our way to catch the 11pm ferry from Newhaven to Dieppe and our engine management light comes on again and the van goes into limp mode! It did the same last Sunday so we had it into a Fiat Dealer in Portsmouth and they couldn’t fault it! The code...

www.fiatforum.com

Fuat ducato 18plate 2.3 multijet van injector fault | FIAT Ducato

Hi looking for some advice I've got a 2018 2.3 fiat ducato van it has a fault code p2146/12 it's says from previous owner generic injector fault I've had 4 new injectors put in it ecu been sent away for testing came back with no faults the van has a loss of power like its in limp home and mode...

www.fiatforum.com

One had problem solved by new injectors but youve been down that route.
Note the injectors can also be implicated in the other frequent twin egr problem ie P0401

Ducato twin EGR Engine with P0401 Code (2016 to 2019)

This does not refer to earlier single EGR systems or to later AdBlu SCR engines. Note this is a guide and not definative. It is up to you to make decissions. It is the result of my investigations of data from many contributors and discussion with...

www.fiatforum.com

Try wiping exhaust with kitchen roll, clean or sooty.
Hopfully nothing to do with your main problem

 

[Mohotel Adventures]

Any joy on this issue

 

[theoneandonly]

I have a fiat 2.3 maxi ducato motor that's in limp mode fault code p2146. Replaced injectors had ecu checked and wiring still no joy any ideas only done 14,000 miles on a 2017 plate

Did you replace the injectors yourself garage or diesel/ injector specialist? I was wondering if anyone had put an occiloscope on the injectors.

 

[MohoAdventures]

Also see this thread