93 Passat, drove fine yesterday, would not start this morning. No fuel being drawn into IP. Solenoid clicking, so I assume it works. When I pulled and drained filter I found water, small amounts of veg oil/glycerin (hard to tell) and grime. I run washed bio about 50% of the time. I assume I have some contaminate in the injection pump that has now solidified. I plan on changing the filter, topping up with clean diesel, and first try warming up the IP to operating temps and seeing if that frees up the blockage. Failing that I think I would pull the solenoid and make sure it is actually working fine (I can hear it clicking now), but I assume that it must be some sort of blockage as it worked without issues for 100+miles and nothing this morning.
Any thoughts?
Thanks,
Ian