I had this fault; it was excessive return leakage from one or more of the injectors, which causes a pressure drop in the common rail during heavy loading, such as high speed, acceleration, climbing hills, etc. Remove the plastic return pipes from the injectors output return and place 4 long lengths of plastic pipe on to the injector output return; place the pipe ends into 4 separate jam jars start the engine and monitor the return flow; after a short time check the level in the jam jars; the offending injector will have a lot more return fuel in it’s jar then the others. Replace the offending injector this should cure your problem.
Posted on Monday 12th of July 2010Don't understand this? Ask a question