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To test your AWD, try this
https://www.youtube.com/watch?v=ooQRxlChvMw

First your car died off and then it can't start or even crank. You've change the starter and battery and still won't crank ?

Look into your ignition switch as it can cause the above. Apart from...

Apart from that : (1) Alternator (2) Aux Belt Tensioner Bearing (3) Anything connected to the Aux belt

Apart from the hardware between Auto (more components) and Manual ECU, the software is written differently too.
The manual SW has a part in it that holds the revs slightly during gear change
As...

From Oblarks table, RPM is on the left column
Load is the MAF reading + Throttle Opening (TPS signal) + Vehicle speed (sometimes)
Max High Load = High MAF intake + Load vehicle speed + Wide Open...

You didn't mention RPM or acceleration feel. Boost is a restriction to airflow. The more airflow (to the engine) you have, the less boost is captured at the manifold. When the charged air is consumed...

The dirty cylinder walls (1,2,3) could be stuck oil rings on the pistons. Was the car smoking prior to this ? Did you get alot of blow-by ? What boost were you running ?

One of the intercooler hoses came off ?

The TCV is always open (from turbo compressor snail to wastegate) unless the ECU fires some PWM voltage to hold boost. As mentioned 100% DC is fully closed and 0% is fully open.

Now on the...

A M4.4 will cause a MIL from the TCM when plugged into the 850-T5/R if it's an auto.
Manual 850 are okay.

You can't do it the exactly the same way as yours as most of your connectors are at the side of the ECU.
These will not fit in the OE ECU slots unless theirs is also without the ECU casing
My 2...

Hybriduno,
After reading your post and asking if you were on M4,4 I did the M4.3 conversion as well. Somehow for the autoxbox, an MIL from the TCM is lighting it up but that's not why I'm posting....

You're using M4.4 ?

Get a medium size syringe, plug it parallel to a boost meter with the actuator hose.
When pressuring the syringe, see if there is movement on the actuator, in comparisson to the boost meter. Some...

A 16T in standard form is not able to boost to 1.4 bar unless you stiffen the W/G actuator or some of the BCS hoses are incorrectly fitted. Check W/G diaphragm & hoses and see if it's connected.

If you go through your local agent, remind them to specifically remove the rev-limiter as your auto wiring loom will have the P&P switch fixed at neutral/park, so your car can start. At these two...

You can contact RICA as they did a software for XC70 auto using a s60r engine (manual) for me. The ECU is still the xc70 but map has been converted for the manual.

Did you check your fuel pump ?
It's not broken (since you can start it) but the petrol hose inside could have shrunk & leak back into the tank, and the motor feeding fuel to the upper (fuel pump)...

So all this time, you get open/lock the car with the passenger door lock ?
You have to force the key in then (or after the WD40 treatment). I've experienced this once while trying to access...

When you are losing oil, do not just top up as the new oil going in will be contaminated. The old oil has deteriorated and does not provide the cooling properties. Do a complete oil change. It has...

Wow, your stickers will weigh the car down... :D

You'll know it's a boost by looking at the boost gauge on the dash.
Your case is most probably due to the fuel pump

Some pins on the ECU could be loose (poor contact) and after pulling and re-inserting the ECU, the contact came clean. Another area will be the ECU is limping but MIL is not on yet.

I guess you need a partition / separation between the engine compartment and driver ?

Got from the XC90 manual :
Ignition Key to Pos-II
Cycle through the info dial/button for pending messages
Press and hold the LOCK button at the door (lower left button)
You should see the...