Adjusting a turbo-diesel engine

Hello there,

I'm having the following problem with my VW T3 TD:

'Cold start is excellent, the engine starts immediately! However, when the engine is warm, it starts much worse. Furthermore, the fuel consumption is too high at 11 liters (at a highway speed of 110 km/h). Previously, I had the 1.6L engine with 50 horsepower, which consumed 9-10 liters on the highway.'

Who can properly adjust the TD motor to achieve optimal performance?

Specifically, the boost pressure (as measured by the VDO instrument at approximately 0.55 bar) and the fuel injection pump.

Is there a specialist who focuses on this area?
Or can they do that at a Bosch service center?
Can you do that yourself? But is it possible without measuring instruments?


Here are some additional details:

Compression is okay.
Valves adjusted.
Spark plugs okay.
Fuel filter, new.
Air filter, new.
Fuel injectors, new (from Henzo).
Refurbished fuel injection pump (by Henzo).
Förderbeginn mit Messwerkzeug eingestellt, gem. Manufacturer's information.
The LDA dose is okay.
The turbocharger has approximately 30,000 miles on it and is in good condition.


Greetings from the beautiful Münster region.

Klaus.

I don't think everything you listed is okay.

Because 0.55 bar is too low for the JX.

The closely related JR strain produces 0.72 bar.

A colleague even drives the JX with almost 1.0 bar of pressure (and increased flow rate).

Does the LDA (Lean Definition Assist) system completely shut off the fuel injection at full load? (It's wonderful to observe this in a T3 when you're riding and listening closely to the engine.)

Okay, please provide the German text you would like me to translate into English. I will only provide the translation.

The LDA dose is working perfectly!

Well then, the 11 liters per 100 km are also 'perfect' and 'completely okay'...