Hi
I am working on a BMW 635 csi '79
I am going full sequential ignition and injection in the future but for now wasted spark is OK.
All hardware is ready now only camsync not. For now I want to run wasted spark using COPs. But the inject and ignition outputs are a mystery for me.
Q1 I read I need to configure ign_dualout but I cant find where??
A I asssume you are running the latest released firmware/megatune package ? If not, get it from [here] (unzip and run megatune) then if you take a look at settings -> ignition settings, you'll find the option "Dual output mode"; enable that. After that set up the ignition channels in settings -> Ignition outputs dual setting screen. - DB\n
global.h: uint8_t ign_out; // EDIS:0x0? dummy: 0x7? disable:0xff bit1: ign_dual_out bit0: invertout
After setting it, you can verify in the mcd dump that ign_out=72 (not 70, that is normal dummy-ignition). Don't forget to wire the ignition-outputs sufficiently: the paired outputs must be neighbor ign-channel numbers such as 1 and 0 (or 7 and 6, etc...).
Q3I do not completely understand the text above, I paired the outputs but what do you mean with global.h and mcd dump?
I'm now testing the ignition coils and al work well when using the keyboard command mdnxx, I get a 2 nice sparks (thanks DB) for the 3 cell numbers. but when I crank the engine nothing happens even the spark advance in megatune stays red ad the background en says -1.7 degrees
Q2 What is wrong please see my config
A I guess you dont see rpm while cranking either (or irratic rpm numbers) it seems you have your trigger tooth and another trigger tooth swapped in config. Since you have a 60-2 on a 6 cylinder, another trigger tooth should be 60 / 3 = 20 (14 hex) trigger tooth should be adjusted so that ign_tdc_delay is around 60 degrees. (6 is usually a good starting point)
The input triggers: original 60-2 wheel (BMW e34 ’90)
Camsync: [Hall-Effect Vane sensor]
Camsync sensor position with the info on GenBoard/Manual/InputTriggerCamSync
I made the following drawing to figure out where the camsync must be placed
So if i turn the crankshaft to 150 degrees before TDC of cilinder 1 the Hall sensor mounted on the camshaft should give a reset puls.
Please correct me if I'm wrong
See DocsPage bottom for file area to upload images.
alternatively you can upload the pictures from your computer to another image hosting ("gallery") site like [http://tinypic.com , than copy and paste the url for the image into you wiki page.