Audi A3 2.0 TDI 8V 150 hp - Post Injection 2

Post Reply
PKalle
Posts: 10
Joined: Sun Oct 02, 2022 2:47 pm

Audi A3 2.0 TDI 8V 150 hp - Post Injection 2

Post by PKalle » Thu Oct 06, 2022 2:26 pm

Does anyone know if it is normal, that Post Injection 2 - injects for every 3-5 kms?
If not, anyone knows what might cause it?
Best regards
Peter

PKalle
Posts: 10
Joined: Sun Oct 02, 2022 2:47 pm

Re: Audi A3 2.0 TDI 8V 150 hp - Post Injection 2

Post by PKalle » Sun Oct 16, 2022 9:49 pm

Nobody?

User avatar
admin
Site Admin
Posts: 473
Joined: Sun Jun 02, 2019 10:58 pm

Re: Audi A3 2.0 TDI 8V 150 hp - Post Injection 2

Post by admin » Mon Oct 17, 2022 11:14 am

What do you see exactly?
Does your engine has SCR filter? In this case, the ECU sometimes injects fuel to perform a little regeneration of SCR filter, maybe it's your case.

PKalle
Posts: 10
Joined: Sun Oct 02, 2022 2:47 pm

Re: Audi A3 2.0 TDI 8V 150 hp - Post Injection 2

Post by PKalle » Tue Oct 18, 2022 10:45 pm

I do not know what a SCR filter is. It is an 2016 Audi A3 8v 2.0 TDI, 150 hp.
What i see is, that every 3,5 - 4,5 kms, the post injection 2 injects diesel.
It is between regenerations.....and all the time with 3,5 - 4,5 kms intervals.

User avatar
admin
Site Admin
Posts: 473
Joined: Sun Jun 02, 2019 10:58 pm

Re: Audi A3 2.0 TDI 8V 150 hp - Post Injection 2

Post by admin » Wed Oct 19, 2022 8:15 am

Should be the SCR system regeneration.
SCR is a filter fo NOx reduction that requires, in some engines, little regenerations in the middle of the DPF main regeneration.

You can find more information about your engine searching for the engine code, it should be easy to understand if the SCR is present in your system.
You can also check if some engine group lets you read the NOx value, in this case you can verify is that value decreases during those short regenerations.

Post Reply