Hi out there,

my 3wheeler will not start anymore ..

I'd checked the petrol injection (with S&S proTune, seems to be ok., petrol pump is also running, I can smell the petrol when starting with sparks removed ...

So I found that the sparks (both) are not firing, I'd measured the ignition coils, seems to be ok.

In a next step I connected a DSO (Digital Storage Oscilloscope) to the input of the ingnition coil and found, that after 'ingnitgion on' the middle of the 3 cables will connected to 12V+ (thats what I expected) , but only for around 10sec. than it falls back to 0V ....

The outer cables (from my understanding they will be switched to ground by the ECU (VFI) to fire the sparks) doesn't show any ground connections when trying to start the engine (starter is running) .....

Any Idea?

Has anyone a wiring diagram of the ignition system of the M3W ?

I'm afraid that it may be a problem of the immobilizer (from Stevens) , I would prefer to remove this completly , has anybody done that or some information about this ???

Thorsten