rusefi.com

I am trying to set up a microRusEFI for a GM LV7 Ecotec. It's a 4 cylinder with individual coils, has a 60-2 sensor on the crank and what looks like Bosch Quick Start on both cams, I have the intake cam sensor connected. I'm getting no spark. I'm not familiar enough with rusefi or Tunerstudio to know what's wrong. Hoping someone can take a look and point me in the right direction.

my current tune is at https://rusefi.com/online/view.php?msq=1397
a cranking log is at https://rusefi.com/online/view.php?log=1166

Have you followed the trigger setup guide here? https://wiki.rusefi.com/Trigger-Configuration-Guide/

The tl;dr is that your trigger may need to have "invert" set - have a look at the trigger shape in the trigger logger in TunerStudio (you can also save the trigger log from TS as a CSV, and upload that here).

The ECU is seeing your trigger input, but the timing is wrong for a 60-2, so it's possibly inverted.

ps: it looks like you're cranking with no plugs in, there's almost no engine speed variation?

Thank you, I believe you are correct, the primary is inverted. And yes I have the plugs out.

Thanks for the link to setup info. Yet another very helpful page that I have not seen before.

MadGoatCustoms wrote: ↑

Tue Feb 14, 2023 12:05 am

trigger_log.png

Yup - toggle invert and it should sync. Looks great otherwise!

Yes, that fixed it. I tried that before and I didn't think it made any difference, but now I realize my timing light is not working and that was part of the problem.

MadGoatCustoms wrote: ↑

Tue Feb 14, 2023 12:05 am

Yet another very helpful page that I have not seen before.

Sorry about that We need to do a bit better in this regard.

Let me attempt https://github.com/rusefi/rusefi/commit/9f1fe789be5c861f908becd1fa2a9fc45960e67a

No worries. The scattered info can be frustrating, but I knew what I was getting into when I purchased the hardware.

MadGoatCustoms wrote: ↑

Tue Feb 14, 2023 12:36 am

No worries. The scattered info can be frustrating, but I knew what I was getting into when I purchased the hardware.

You've just helped us make it a bit better

AndreyB wrote: ↑

Tue Feb 14, 2023 12:44 am

You've just helped us make it a bit better

image.png

I'd even put that link loose on the page instead of buried in a tooltip

mck1117 wrote: ↑

Tue Feb 14, 2023 12:46 am

I'd even put that link loose on the page instead of buried in a tooltip

Can you please help with that?