To verify spark I used a timing light on all cylinders while cranking and then again when running.
When Cranking the timing light flashes when connected to all cylinders.
When running only 1&4 cylinders are showing spark using the timing light.
Car runs really rough and i have to give a little gas to keep it going
Timing has been verified and set
When reverting back to stock ecu all cylinders spark when cranking and running (this shows coil packs and ignitor should be good)
Also because i see spark with the speeduino while cranking i believe that should be good as well. I am thinking i may be missing something with my tune.
I am using miata 99-05 decoder with trigger edge rising and secondary falling.
If there are any setting that i may be missing that may cause this or anything i could try please let me know. Thank you in advance.
speeduino is v0.4.4 board and i have tried with multiple firmware versions. The current version being used with the tune below is 202005