MembersPage/JoelZernask/ConfigurationPage (2006-03-12 07:56:32)

As my Genboard v3.3 seems to be installed (see MembersPage/JoelZernask), I will now try to dig through the configration.

http://www.vems.hu/files/MembersPage/JoelZernask/config.txt

http://www.vems.hu/files/MembersPage/JoelZernask/tables.txt

Note that you will need to download the config.txt from the box!!! You do this by issuing Manmcd in a terminal program. The response is saved as config.txt. If you don't do this you will have to recalibrate the wbo2! No big problem but a waste of time.

I took a look at the tables.txt file and it was named tables..txt which will make the mtt creation fail. Check the dates of the tables.mtt and config.mtt files. Maybe the right files was not uploaded to the VEMS v3. I have renamed it to the correct name.

In any case I have updated the config.txt file to work with firmware 1.0.36 http://media.vems.se/code/VemsMT1.0.36.zip which is a development firmware. But it significant improvements over the old production firmwares and it has been used for some time. -Jörgen


Trigger

Primary-VR

Secondary-HALL


NO SPARK

I copied these config.txt and tables.txt files to my firmware/etc folder. Then changed the ignition table h[2]=03 02 01 00 03 02 01 00 in the tables.txt file and saved it. Then used the makeconfig.exe and maketables.exe from the Wintools folder. Then I uploaded the tables to the ECU using upload_config.bat from the main folder.

But there is still no spark. I don't know whether the new settings made it to the ECU or not - the fetch from ECU button hardly ever changes anything in the fields. I shouldn't touch the graphic tables anymore - the car should start based on the information on the config and tables, right?

I'm out of ideas. Maybe I should switch to 60-2 missing tooth trigger wheel, the 4 pins + cam sync does not seem to be getting me anywhere. There is some anomaly with the VR sensor reading the 4 pins too - on cranking it usually shows appr 100 rpm, but sometimes it flashes ~500-600 for a second break.

Can someone please prepare me correct .txt files or show me what I should enter in the MegaTune's Basic Settings, Constants, Injector Settings, Injector Outputs, Ignition Settings, Ignition Outputs, Primary Trigger Settings and Secondary Trigger/Cam Sync Settings graphic tables. Then if there is still no spark I can tow the car back to the electrician, who installed the v3.3 to search for the problem...


Here are the specs of my engine:


Ignition

Cylinders firing together are:

1 5 4 8

6 3 7 2

The coil packs are connected as follows:

EC36-pin35 to Coil 1

EC36-pin33 to Coil 2

EC36-pin34 to Coil 3

EC36-pin36 to Coil 4

Therefore cylinders are wired as follows (see GenBoard/Manual/DigitalOut/Table for driver channel numbers):

Cylinders 1 & 6 to Coil 1 to EC36-pin35 drive00

Cylinders 5 & 3 to Coil 2 to EC36-pin33 drive01

Cylinders 4 & 7 to Coil 3 to EC36-pin34 drive02

Cylinders 8 & 2 to Coil 4 to EC36-pin36 drive03

This spark table can be used, right?

17octsparkmap1.jpg

It's about right for a start but there are lots of redundant loadsites. You only need 20,30,50,70,90,105,130,150,170,190,220,255. Having 12 kPa sites from 20-100kPa will just waste time when tuning the car which is always bad. Bens current spark and fuel tables will be in the tables.txt file I'm preparing -Jörgen

Be sure to get the base timing (trigger_tooth and igntdcdelay) right.

Fuel.

Again referring to Ben Nesbitt's information, adjusted for my specs:

sequential fuel delivery for Audi 3,6 V8 PT engine

firing order: 1-5-4-8-6-3-7-2

Bosch injectors 173cc

Fuel map:

17octfuelmap1.jpg

Constant for RPM calculation should be 1500 (8 cylinders), right?

fuel5.jpg

Req fuel is 16,7 in my case (173cc injectors).

fuel6.jpg

Here are Ben's trigger tables. How should I fill the first one on my 4 pins setup?

mt10.jpg

This one should apply to me as it is.

mt11.jpg

Is this h[0] table correct?

fuel2.jpg


Communication problems

After repositioning of the wires (getting it bad first?) we managed to get the only "Success!" message from the MegaTune.

3. We installed the Bray Terminal to see whether the ECU is alive. (exited from MegaTune for that time of course!). The <0>'s kept flowing and flowing endlessly.

I suspect you maybe have started a firmware upgrade that disconnected in the middle or something. Don't worry, in the worst case powerup the ECM with the ECM's RS232 (pin2 and pin3) loopbacked, than remove the loopback and plug in the PC. Bootloader test should work now, and you can proceed from there.

Hopefully the bad connection didn't damage the max232 or something. If you disassemble the ECM, don't clamp it back until:

This problem is solved - it was all caused by a wrong ECU-PC connection.