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Slevin · Apr 21st, 2024, 19:41

Hi,

i dont want to open another topic so I just write it here.

I have a 99 V70 with MSA15.8. It feels powerless for me( I also have a MK2 2.5T with Shemtek tune though).
It picks up slowly, there is some power above 2000rpm and above 3000 it feels like the boost is spiking. It pulls unevenly. The engine starts right up when cold/hot, fuel comsumption is OK, there is a normal amount of smoke at WOT but i think it should be quicker. Ohh yes, forgot to mention, it has a Vdash tune on it as well.

Engine has just been "semi-rebuilt" due to a aux belt failure. Rebuild head, rebuilt injectors, new piston rings etc; but the weakness problem existed before rebuild,too.

I tried another MAF and TCV from another car, no change. There are no DTCs stored, actual timing is 0.5-1 degree off compared to the desired value. Reading was made with VIDA.
Is there a known common fault in the injection pump's control module like there is in the VP44's?

Apr 21st, 2024, 19:41	#6
Slevin Master Member Last Online: Today 20:12 Join Date: Jun 2011 Location: London	Hi, i dont want to open another topic so I just write it here. I have a 99 V70 with MSA15.8. It feels powerless for me( I also have a MK2 2.5T with Shemtek tune though). It picks up slowly, there is some power above 2000rpm and above 3000 it feels like the boost is spiking. It pulls unevenly. The engine starts right up when cold/hot, fuel comsumption is OK, there is a normal amount of smoke at WOT but i think it should be quicker. Ohh yes, forgot to mention, it has a Vdash tune on it as well. Engine has just been "semi-rebuilt" due to a aux belt failure. Rebuild head, rebuilt injectors, new piston rings etc; but the weakness problem existed before rebuild,too. I tried another MAF and TCV from another car, no change. There are no DTCs stored, actual timing is 0.5-1 degree off compared to the desired value. Reading was made with VIDA. Is there a known common fault in the injection pump's control module like there is in the VP44's? Last edited by Slevin; Apr 21st, 2024 at 19:44.