Citroen c4 picasso diesel blue hdi mk 2

[K albanoglou]

Hi all!
Recently got my Citroen c4 picasso diesel as used car and after a month or two,i have issues with it. Here in Greece a proper diagnosis is too hard to get.
The car shows interruptions while driving and it sounds like it’s running on three cylinders instead of four, with a corresponding lack of acceleration and vibration inside. Recently, the fuel injectors were cleaned but the problem wasn’t solved. The diagnostic light is always on (service indicator), and high temperatures are observed in the exhaust system sensors.
Any idea what is the problem? Thanks

[CitroJim]

Hi and welcome to the forum

On such a complex engine as this it could be many, many things.

You really do need to get diagnostics performed as without it, all will be pure guesswork and that rarely, if ever, gives satisfactory results.

Once you have had a full diagnostic carried out we'll be in a better position to advise.

[K albanoglou]

Diagnostic trouble codes

OBD-II

P2084
Exhaust gas temperature (EGT) sensor 2, bank 1 - range/performance problem
Status: Pending
Click to search for description on the Internet …

P0426
Catalytic converter temperature sensor, bank 1 - range/performance problem
Status: Pending
Click to search for description on the Internet …
This is the only two registers

[K albanoglou]

also temporarily appeared an indication that there is a risk of clogging the particulate filter

[Paul-R]

What year is the car? How many kilometres has it done?

[K albanoglou]

First registration 2016 and 110000km
Also I have to report that this behaviour is temporarily appeared and usually the engine works properly