I am trying to convert my volvo 850 2.0 T5 to motronic 4.4, and I got some questions :
1. Are these the correct opening time values for orange bosch injectors (-785):
5.00 2.632 5.99 2.632 6.97 2.632 8.03 2.398 9.02 1.853 10.00 1.443 10.99 1.170 11.48 1.111 11.97 1.014 12.47 0.936 13.03 0.858 13.52 0.819 14.02 0.760 14.51 0.722 15.00 0.683 15.99 0.605
Because there are some other values posted in the comments section on 4.4wiki page (check out the photo).
2. When I set the injector opening time to 0,683 for 15.00V, tunerrt program automaticly changes it to 0,682, is it okay? All the other values doesn't change, stays as typed.
maybe someone can help me or give me the instructions.
I have 2010 year Volvo XC60, 2.4 diesel, D4 engine, automatic transmission, AWD.
Problem is for some reason the car does not have turbo boost anymore. Turbo is working only after the cold start 80 km/h and then turns himself off. If the engine temperature is 90C, ignition needs to be off at least ~ 10 minutes and then turbo works again but only up to 80 km/h. And then turns himself off again.
At first I had problem with turbo which leaked oil, the bottom part of the engine was all oily. Second problem was smoke in the interior and under the bonnet. Smoke came from rear part of the engine, not from exhaust! No power loss, car went very well.
Local service they changed turbo to the new one (used but factory restored) and installed the new turbo. Oil leak was goen but smoke remained. Smoke came same place, under the bonnet, from rear part of the engine where is the turbo. I went back to the service and they did guarantee works. Uninstalled turbo and sent the turbo to the seller, who checked that everything was okay. Before the repairman started to install turbo again he discovered broken plastic tube / pipe which connects two turbos with each other. And I think this was the problem why engine sometime smoked. Also in the service they washed DPF filter. I have not any idea why because with this car I have not any problems with DPF and it worked before the service very well.
Ok turbo and tube were installed, at the beginning car works. Suddenly threre was not turbo boost any more.
No fault codes / lights in the dashboard. Diagnostics does not show any fault codes. Car is not smoking and starts up well but after the first approx. 300 meters turbo pressure is gone.
MAP sensor is working, EGR is working, turbo valve /controller (flap) is working. No smoke from exhaust.
I suspect that maybe they ruined in service DPF filter or DPF filter temperature sensor. I have no idea how they did this task and this was the task which I have not ordered from him.