petem
Well-known member
I remember reading in a few places that the injection pumps need to be calibrated as per Volvo Penta's specs. You can't just buy a Bosch pump off the shelf and expect it to work. It seems to have caught people out in the past. Common sense would suggest that this could cause the very lumpy running that you are seeing.Brand new Bosch pump
VolvoPaul, what do you think?