- Sat Apr 09, 2022 11:28 pm
#56400
So I've been picking away at my 6G72 minivan project and I still cannot get the ignition to fire regularly. I've checked everything obvious and even measured the Cam, Crank, and Ignition right on the pin header going into the arduino board as well as heading into the harness. I am well-versed in electronics and I cannot find any obvious connection / hardware problems.
My trigger set up is a 24/1 wheel running at cam speed. The ignition set up uses a distributor so I have IGN1 going to a power transistor to fire the coil pack into the distributor.
In the picture below the signals are:
Blue - Crank Input
Purple - Cam Input
Yellow - Ignition Output
I have tried swapping all kinds of values in the configuration, but no matter what I try the ignition output is always random looking with no patterns that I can see. It just seems to fire at random intervals. Oddly enough when I'm cranking the ECU shows my RPM to be around 200 which leads me to believe the crank signal is getting in properly.
I'm thinking of buying a 30 dollar 2560 board to eliminate that as a possible issue.
Current config - https://www.dropbox.com/s/j7h5928ylxpei ... 2.msq?dl=0
Cranking Datalog - https://www.dropbox.com/s/mi6ax0zjqrybh ... 3.mlg?dl=0
Tomorrow I plan on measuring the injector outputs along side the trigger inputs to see if that sheds any light because I am going nuts not being able to figure this out lol.
Thanks for the help!
My trigger set up is a 24/1 wheel running at cam speed. The ignition set up uses a distributor so I have IGN1 going to a power transistor to fire the coil pack into the distributor.
In the picture below the signals are:
Blue - Crank Input
Purple - Cam Input
Yellow - Ignition Output
I have tried swapping all kinds of values in the configuration, but no matter what I try the ignition output is always random looking with no patterns that I can see. It just seems to fire at random intervals. Oddly enough when I'm cranking the ECU shows my RPM to be around 200 which leads me to believe the crank signal is getting in properly.
I'm thinking of buying a 30 dollar 2560 board to eliminate that as a possible issue.
Current config - https://www.dropbox.com/s/j7h5928ylxpei ... 2.msq?dl=0
Cranking Datalog - https://www.dropbox.com/s/mi6ax0zjqrybh ... 3.mlg?dl=0
Tomorrow I plan on measuring the injector outputs along side the trigger inputs to see if that sheds any light because I am going nuts not being able to figure this out lol.
Thanks for the help!