L d v 2.5d non turbo?

why would the fourth injector be ok?what was wrong with it?Had a couple of these that they would run ok but as soon as they hit a hill they would just die with no pull whatsoever,there was a ring in the pump that used to break up causing this,which meant a pump overhaul,also had some where they would seem as if they were turning over ok but not start and the main battery lead down to starter caused problems,new lead and they were fixed,just a couple of things to check out.

cdc
July 2012