low power

[Mucky1987]

I've posted about my vehicle in other sections but i thought here would be best.

so i have a volvo V70 D5 twin turbo 202bhp model. i have had the car mapped and have also done a DPF delete. The car is fantastic but at low revs there is no pull and with being the twin turbo model i would expect there to be across the full range. The car does not pull until the 2.5-3k mark. Ive been asked to contact the company who performed the re-map, which i did who looked into the situation and i also contacted the company who generate the maps for the vehicles. They took time to check the original map against the updated one and informed me that there were no issues, but would continue to help with my issue in anyway they could. I have looked into issues and have found that the exhaust temperature sensors are known for failing and breaking down and this can cause the performance issues.
I have not yet had chance to check the running temperature sensors but will do this tomorrow when i get hold of a computer.
Has anybody else had this issue or know of this and what rectifications have they carried out?

[Clan]

Originally Posted by Mucky1987

I've posted about my vehicle in other sections but i thought here would be best.

so i have a volvo V70 D5 twin turbo 202bhp model. i have had the car mapped and have also done a DPF delete. The car is fantastic but at low revs there is no pull and with being the twin turbo model i would expect there to be across the full range. The car does not pull until the 2.5-3k mark. Ive been asked to contact the company who performed the re-map, which i did who looked into the situation and i also contacted the company who generate the maps for the vehicles. They took time to check the original map against the updated one and informed me that there were no issues, but would continue to help with my issue in anyway they could. I have looked into issues and have found that the exhaust temperature sensors are known for failing and breaking down and this can cause the performance issues.
I have not yet had chance to check the running temperature sensors but will do this tomorrow when i get hold of a computer.
Has anybody else had this issue or know of this and what rectifications have they carried out?

Have they altered the turbo control mapping ? The small high presure turbo does most of the work up to about 2500 rpm when valves re direct flow and the large low pressure turbo takes over seamlessly . It starts it's boost at 2000 rpm and gets to max boost at 2400 rpm . The polestar software works well .

[Mucky1987]

they have checked all the mapping but not altered the timing of when the turbo should kick in. max pressure is only at 2400 and onwards up to this point there is very little. I'm checking the temperature sensors later today with a live data feed along with the turbo pressure so will have a more definitive answer then

[Clan]

Originally Posted by Mucky1987

they have checked all the mapping but not altered the timing of when the turbo should kick in. max pressure is only at 2400 and onwards up to this point there is very little. I'm checking the temperature sensors later today with a live data feed along with the turbo pressure so will have a more definitive answer then

it sounds as if they have not taken into consideration the small high pressure turbo and locked the change over valve to the large turbo only , throw it back at them and get the orignail map re loaded .