Its not the immobiliser causing no spark. I have searched but found nothing.
The gararge has traced it down to no signal to the crank sensor.

He cannot find out what voltage its ment to have ie 5 or 10v?.

2 cannot find a wiring diagram for the crank sensor.
This is starting to really cost me guys. Cheers guys need help .

 

If one can not determine which voltage he is looking for, then he can not conclude that the crank sensor uses a reference signal.

Are they following the Honda book?

 

If you removed the head, is the ground wire on the back of the head tightened? If not this will cause a complete lack of spark and the car will not start.