I fitted my wasted spark kit to my 3 door today, fired up first time and what I don't understand is the rev counter is working and appears to be reading right and I have changed nothing on the clocks, I was expecting to have to mess with diodes but I was taken aback when it just worked, is this a fluke or has anyone else had such good fortune. I have a set of denso plugs as well but not fitted yet, what should they be gapped at for 1.7 bar of boost on wasted spark setup.

 

Sorry posted in escort rather than sierra section can someone move it please

 

not 100% sure but i thought there were 2 types of clocks for a three door, only 1 set needs the modification

 

can someone explain how exactly the wasted spark kit from motorsport developments works please?

 

had this with mine aswell, mines an 89 2wd re counter works fine with no mods