Toño_ELC_MFT

Ok, I think it will have to come back to NZ for repair in that case, it sounds like something must be damaged.  Contact [email protected] to arrange.

Im not too sure what you mean by "but the ECU won start".  So the Blue LED lights up but do you mean the laptop wont connect to the ECU now?  Or just the engine wont start?

If you grind that long tooth completely off it will make it into a 18-1 trigger pattern which is supported.  The engine would have to run wasted spark ignition and batch fire injection without a cam sensor.  Ideally you would add a cam sensor which will give you sequential and direct spark capability.

These are the trigger teeth on the outside of the flywheel.  So we need to know what pattern these are in - there will likely be a number of evenly spaced teeth then either some missing teeth, long teeth or or extra teeth.  

I think that is just the sprocket for the timing chain by the looks.  Trigger is likely on the inside or outside of the flywheel/Alternator.

Do you now how many teeth is on the crank and what pattern it uses?  A lot of single cylinder engines use MAP sensor instead of a cam sensor so that may be a problem.  

The first thing to confirm will be the trigger system.  What does it have for triggers, what pattern does it have on the crank, does it have a cam sensor or use MAP sync?

I have run single cylinder engines with the G4+ line of ecus.