*dieseldude

engine is 4d56 NA in a mitsu L3FB ... problem is ... upon running for a few meters and slowed down or stop, engine shakes heavily that I need to rev the engine higher to keep the engine running ... failing to step on the accelerator pedal would cause the engine to die ... I used to experience this engine behavior when I'm low on diesel but now I am experiencing it even on half or full tank of diesel ... performed the following already: fuel filter check (it's clean/unclogged upon disassembly), fuel lines check (no fuel leak or air getting into fuel lines) ... currently, the engine emits a moderate amount of black smoke when revved. Do you think that the "engine shaking" might have something to do with the injection pump's or injectors' condition?

Let me know your thoughts sir. I would really appreciate them.

Thank you.