Hi everyone,
I have a 2010 Audi A4 B8 2.0TFSI (EA888 gen2, CDNC) Avant Quattro with a unknown stage1 tune.
When i hooked up the MPVI2 and tried to read the tune a got a bunch of popups saying that the control module is not readable and definition failed to load. I am not able to view anything in the tune file which is created.
From reading up on the forum I've understood that this might be common with these ECU's. I did open a ticket for this but i have some thoughts I would like to run through you meanwhile.
I am completely new to HPtuners and MED17 but I have some experience and understanding from engine development of larger engines, mostly diesel though.
The stock tune, supplied by HPtuners, that I might have to start from is that factory equivalent with full control functionality?
I would ideally like to be able to open the existing stage1 tune and compare that to the stock tune to understand what parameters that have already been changed.
I do however think I'm starting to get a grip on what to change from all of you other contributors here on the forum, THANK YOU!
The existing stage1 tune is supposedly raising the power output to 270Hp (according to the seller of the car).
Will I with HPtuners be able to produce a tune performing similar to a stage 1 tune? I'm just a bit hesitant to trow away a tune I know works OK.
Would it by a lot of logging be possible to somewhat understand how the stage 1 tune is set up even though the tune is not readable?
If someone would like to share a logging channel config file suitable for these engines I would be super grateful.
Just to give you a background on what I am trying to accomplish:
I bought the car 18 months ago. Two days after I bought it I lost oil pressure resulting in a complete engine rebuild. The mesh screens in the lubrication system had broken from fatigue.
Small pieces of the mesh screens traveled with the oil causing the balance shafts to seize and the piston cooling nozzles to be stuck open resulting in low oil pressure on idle.
I ended up putting in forged pistons and rods and deleted the balance shafts. Deleting the balance shafts meant i had to reconfigure the lubrication system and blocking some of the oil passages in the block.
Deleting the balance shafts also meant I needed to go for a electric water pump since one of the balance shafts are driving the mechanical water pump in the original setup.
The electric water pump is controlled by a standalone micro-controller and is right now only dependent on coolant temperature but i intend to include throttle position or maybe a load signal in order to keep the temperature peaks down.
I have also fitted a 034-downpipe with high flow cat, a open filter and a larger throttle body.
The intention is swap out the turbo in the coming months. To combat any fueling limitations I have also upgraded the low pressure fuel pump to a Walbro 525 and tweaked the fuel pump control module.
On the injection side I have mounted the intake manifold from a B9 that has port fuel injection as well. The PFI injectors will most likely be controlled by a piggyback system.
Ideally this functionality should have been included in the MED17 controls but I don't have high hopes for that.
Swapping out the intake manifold resulted in a different scaling of the runner flap potentiometer. Would it be possible to change the boundaries of this sensor with HPtuners or should I just switch of the diagnostics?
I also intend to incorporate a flex fuel system but I am not sure how to do the controls of this as of now.
I know there are a flex fuel version of this generation of 2.0TFSI but I don't know if its possible to include this functionality in the factory ECU with HPtuners?
Extremely grateful for any answers or comments to my many questions and thoughts above.
And oh yeah, did I mention that this is my daily that i take the kids to school in and drive 100km to work each day