V6 TDI Fuel Pump Failure?

Hi,

The vehicle is a 2003 A6 with a V6 TDI engine.
The actual problem was that the car had been filled with gasoline and then broke down.

After the fuel tank was drained and refilled with diesel, including a filter change and cleaning of the fuel lines, the car has no power, produces excessive black smoke, and runs roughly.

'Error log: 'Start of injection... (I'll check that again more precisely tomorrow).'

When set to channel 4 in its default configuration, it should display a temperature of 2 ± 2 degrees and switch between 'early' and 'late' settings.

a) That thing really starts to get going.
b) The value goes up to 20 units above the offset (OT), and then briefly drops to 0 degrees before immediately jumping back up to just below 20 degrees.

Did the pump break down? According to the workshop, it needs to be replaced.

Hi!

You've already given the answer!
It's clear that the injector control valve (solenoid valve) was the culprit.
If this value is out of range, a replacement value (20° in the early direction) will be used.
Nail, nail...

The only solution is to swap!


cu: Marko

Yep, we replaced the pump today, and it's running like a charm again... it's a shame about the pump, but well, shit happens ).