Originally Posted by GARETH T
i think people are getting confused here!
the coil on a four stroke, four cylinder engine fires twice every rev,
the difference on a coil pack driven four stroke, four cylinder engine it still fires twice per rev, but only one side of the coil pack is driving the rev counter! so the rev counter reads half
So basically my DTA is sending the signal from BOTH sides of the coil to the Tacho (hence double reading)
But the old ford system only sent the signal from ONE coil.
So all me and B19-TRB needs to do is use the signal from one side of the coil pack with an inline noise filter to run the Tacho
