PD140 Bad Missfire - hardly runs

[Scoop940]

Mate of mine has a B6 Passat PD140 and it broke down yesterday leaving his missus and 3 month old stuck on the motorway. breakdown service just towed it home. Popped in and checked for error codes this morning for him - just one 01314 -036 ECM sporadic communications. Googling shows this is quite easy to generate just with a failed start. No other codes.

It does start, takes a fair amount of cranking - which doesn't feel smooth, and then feels like it is miss firing. Any thoughts on the problem? One of my thoughts was a failed injector - he called his local garage who said unplug the Air flow meter and try to start it. He will try that later but the symptoms seem a bit extreme to me for that.

Anything sound familiar to others? or any ideas?

[Scoop940]

Fuel Pump apparently, and there was a recall on this car for it that was never done. VW now fixing FOC.

[martijn v o]

miss firing with a diesel?
If the engine is shut down there must be an error code.
Thry the disconnected airflow meter.
Already checked the oil level?

[Scoop940]

All fixed for free by vw. Was the fuel pump

[martijn v o]

.

Which pump is replaced the one in the petrol tank or the high pressure pump (tandem pump) on the engine?

[Scoop940]

Not sure to be honest, I assume the one in the tank, which ever was the subject of the recall.