Chip tuning? 3-8-11 log file!

Hello everyone,

I bought a used VW T4 van!
Since it's producing a lot of black smoke and I've already ruled out mechanical problems (the EGR valve is also faulty), the question now is whether my van has been chipped.

Can someone provide me with a knowledgeable opinion on this?

Der Vorbesitzer streitet alles ab!

3-8-11-Log-file im Anhang - Testfahrt ca. 1700U/min bis 4000 U/min 4. Gang.

Fuel injection quantity in the engine control unit (ECU): Value 001 indicates 42.2 mg per cycle.

It's a Volkswagen T4 with engine code AJT, producing 88 horsepower, manufactured in November 2002.

It would be great if someone could help me!