Engine won't Start

A few Weeks ago i go little bit mudding.
On the was Home I can't drive temporary faster then 85kmh. And it started really bad . Then one day , I try everything , but it won't Start .only cranking.
When I look at the fuel pump I see that the Diesel looks like orange juice. I pump it out and added fresh Diesel, but nothing. With vent the system.
Now I change fuel pump, filter's and pressure regulator . With a little help of brake cleaner it startet but sounds like he ran on 4 cylinder. I change the crankshaft Sensor , Air Sensor, the
Wiring harness for the injectors und clean the plugs from the ECU.

Someone here , who has an idea?
Injectors broken?

Greats

You're probably going to need diagnostics plugging in. Did you fill the new fuel filter up and let the pump do it's priming thing?

Did you do the auto prime to get all of the old diesel out? Maybe some muck in the one injector not firing.