pinto injection engine missing when you rev it
car idles up and down a little and then if you rev the car up it dies out as if you reached in and turned the key off
but then returns to idle

we put the timing light on it and it is 100% on the timing cam and ignition timing

and when the the timing light is in it isnt losing spark at all

has to be a wiring problem i think maybe someone will know?
all earths look good

please help