MembersPage/Magloman (2017-01-14 18:34:49)

Audi urS4 1992 with the AAN engine

bild1_400.jpgaan_1.jpg

My goal is for now:


What I know:

What I dont know:

Q: Shall I order 2+6 version, what can I use the 2 high current outputs for ?

A: Lots of things. Relay, solenoid, NOS, ...

Q: How about firmware and sensors, do I need to compile something myself ?

A: no need to compile anything. See VemsTune

Q: I suppose I should choose PS2 connector as well

A: useful eg. for wheel-speed input (but we can connect PS2 clock signal to an unused pin as well


VEMS info (I have bought a VEMS that came with this info:)

Board_version=v3.3

Serial_nr= 2267

pump-= 4.05V

wbo2_pump_pw_zero=0x64

wbo2_nernstdc_target=0x87

pump+= -1.0mV/200 Ohm

AREF=4.9V

(C103=1nF, no D100)


Other project info

I have bought a engine loom from a -02 VW passat that will fit the COPs.

Purchased a used WBO Bosch LSU 4.2 7090/91 as per below.

Will start making the new COP work with the OEM ECU to begin with.


Time frame:

2016-01-18

I have begun installing this now. I will make an adapter cable to fit the Motronic 55 connector at first. When I have it all working I will make a new wireloom. Maybe I will wait until next engine takes it place in the car.

Detail your motronic55 adapter. (especially GND-s)

I started out connecting the Vems on bench to my PC so I could update FW. It turned out I needed to "lock" the CPU with direct ISP programming. It worked nice but now I cannot update bootloader further because of "access denied".

I have got the password from VEMS, thanks! Upgrading the FW was no problem when having that :-)

2016-06-19:

I need to update my config files from the old maps 12x12 to new ones 16x16 and maybe some other stuff. Im researching this topic right now.

Was it tuned very well ? (or just OK, or not really well ? It might be easier to start from some generic config; in any case, check ignouts anyway, update your paper and web docs)

I have put together cable for the LCD and tested it out.

https://youtu.be/nF_bM1gTyVo

I also fixed Bluetooth connection so I can connect to it in the car later on.

I also bought a cheap android pad and tested VEMSdisplay, very good! I like it alot! :-)


Questions

2016-06-26

I have no trigger input at all using triggerlog! :-(

I have Firmware v1.2.31

And this is taken from configfile:

primary_trigger=C3

secondary_trigger=19

tooth_wheel=1E

trigger_tooth=00

another_trigger_tooth=06

lcd_analin=67

tooth_wheel_twidth[0]=00

tooth_wheel_twidth[1]=60

cam_sync_r_edge_phase=01

cam_sync_f_edge_phase=02

reset_engphase_after=F0

Is that correct?

Also used built in help in vemstune (newest VemsTune version ?).

The most likely reason for not seeing VR pulses (other than trivial: VR signal not going below 0V or not reaching +200mV) is if device was powered with insufficient grounding and P259 blown.

Detail your motronic55 adapter. (especially GND-s)

2017-01-14:


My problem with no trigger signal was because of faulty grounds. It is very difficult to make an adapter to motronic if you are gonna ground according to vems manual.

I could see it on the oscilloscope; the sinuswave from crank did never go below zero so I guess the vems never "saw" the signal.

I used separate cabling to triggers(shielded) and then I got signal :-) But then my adapter loom was little unstable so I decided to stop doing this half way.

So now I am doing a fresh new wire loom from the ground.

I am gonna start with coils, injectors, and triggers. And see if it starts, then go on and connect the rest.