If this car won't run right with stock hardware, and a stock ecu file, why are we changing variables in the tune? To me it clearly seems fuel pressure/delivery related.

+99999999 if ud nullified the injector torque reduction new head at least

Ok. Ill try and get that done tomorrow

Electronic sender wire? Explain?

Update:
I was delayed due to not having the right fittings. Got fuel pressure data and it's all in spec.
Bentley manual (specs in PSI)
Fuel pressure at idle:36 aprox
Fuel pressure with FPR disconnected from manifold vacuum signal: 44 aprox
Fuel pressure residual after ignition is turned off (bleed down pressure): 29 minimum
Fuel pressure regulator: 3 Bar (43.5113 PSI)

My specs (I used two lines, one with gauge close to fuel line-in and one long line tee-d in so I can route it to the engine bay, it changed stuff but as per bentley specs, this isn't that precise):
Fuel pressure at idle (close to fuel line-in): 39
Fuel pressure with FPR disconnected from manifold vacuum signal: 49
Fuel pressure residual after ignition is turned off (bleed down pressure): 29-31
Fuel pressure max at RPM WOT: 55, tapers to 51 (give or take 3 PSI due to long line into cabin, was aprox 8 ft long)

so far, fuel pressure from pump exceeds FPR 3 bar pressure, so the injectors are not being starved.

I ran some tests specced by the bentley manual to determine if the FPR or fuel sending unit check valve could be bad and odds are, they are not. The slightly higher fuel pressure may mean bad FPR but it's unlikely because the values are not far off. I could fuel pressure test post FPR possibly. It's cold as balls here….

I have an extra set of stock injectors getting cleaned and flow tested. When those are done, I'm going to swap them in and re log.

I also have a spare throttle body I'm going to clean up and swap in. Could be related to all this possibly since I threw the P0507 code. Ross-tech lists that as a possible solution for P0507.

as you say injectors, also plugs and leaks and WG and solenoid..

Swap some bits around off another car (hopefully). 

If you had log before the issue overlaying then now may shed light.

The maps themselves will show you where you're at if your logging voltage manually.  Most sensos are 5v DC (expect the pwm ones solenoid for example) using the ADC converter on the ECU, straight line math basically 0-1024 e.g then inputs into ram eis converted into ME variables via maps mostly.

tune a car = new plugs fwiw

re solenoid if you running it at high DC it will fail quicker

Sounds like you have a bad injector really, just  a guess.  Take the plugs out and inspect.

In my experience a 70 mile drive is required.  To get a read.   

I learned this whilst calibrating 630 dekas, got them near stock in the end but with an angry idle, not to be repeated calibrating them fuckers!  FKKVS looks like a shelf at one axis point.  Then there was clutch in issues blah, even the AC torque map needed fettled.

I used the search function on the wiki to try and find info on RKTI, clearly theres more behind the accronym.

I really really need information that is researchable rather than accronyms i don't know what they stand for. If i need to find something in the FR, then it needs to be in german... If its on the wiki, english....

I said i was a noob, but i cant do anything with what you're providing me...
Give me something i can use, help me learn...