Can injectors from an 81kW ASV engine be used in an 81kW AFN engine? Difference?

Hello!

I'm now considering replacing the injectors on my Audi A4 (AFN engine) with 140,000 km (approximately 87,000 miles) due to excessive oil consumption.
I found a complete set of injector holders for the ASV engine (81kW TDI) with this part number in the Bosch e-catalog:
038 130 202 A
These nozzles have an opening pressure of 220 bar, or were adjusted to that pressure. However, the AFN only had 190.
Is the difference simply due to meeting a higher emission standard through the increased opening pressure, or do these nozzles also atomize the fuel better due to possibly smaller holes?
Can I install these nozzles in my AFN to achieve cleaner combustion, especially when running on PÖL?

Best regards, Christox.

Hmm, the Passat 3B AFN is quite a thing. It was kind of pieced together from different parts.

Normally, the connectors of the NHG (National High-Grade) do not fit when you compare ASV (Automatic Speed Valve) and AFN (Automatic Fuel Nozzle).

Otherwise, a search will also provide some information on the topic.

m;

Quote:

Can I install these nozzles in my AFN to achieve cleaner combustion, specifically regarding PÖL operation?

Yes.

Best regards, Rainer.

Thank you for the quick help.

Does the 'yes' regarding the nozzles in the AFN also mean that the spray pattern of both nozzles is identical in terms of the spray angle? And does the piston chamber of the AFN correctly capture the spray patterns?

So, is the difference in the opening pressure and other NHG connector types?


Best regards, Christox.