I think a lot of your problems are coming from your trigger offset. This is a fixed offset that changes all other angles in the ECU calculations, and has to be set properly to get predictable results.filip5 wrote: ↑Fri Apr 05, 2019 1:45 pmI thought ignition timing at idle should be near 0 or negative due to low RPM?
15 to 20 degrees advance in idle is okay you mean?
I am using this 60/2 wheel right now. The missing teeth are placed about 90 degrees passing the TDC clockwise and engine turns clockwise. What should my offset trigger be?
I am still having trouble starting this engine. When it starts and gets turning stable it runs ok. Attached is a picture of the engine sniffer for 1 full camshaft rotation. The fuel is injected about 360 ahead of the ignition. The injectors are Bosch that throw 8mg/ms and the engine cyl size is 464cm3
The mixture during cranking is a little reach , any idea that anyone can suggest? Attached is the tune and the engine sniffer pict.
Any recommendation what injection table phase should be? I see that 355 to 359 degrees responds somewhat better than any other value.
I've written a rough draft guide on how to set your trigger offset, currently available here (and soon in the main docs)
This may also be helpful, depending on your coil setup. Not necessarily your engine, but the principle still applies.
You should definitely have ~20 degrees advance at idle. This will provide a much smoother idle. This is what vacuum advance does on old distributor-based engines. Cranking advance should probably be 10-15 degrees. If it seems too rich while cranking, reduce the cranking pulse width (I believe this default was set for Miata, which has smaller injectors).