I had problems getting the tach to pick up the signal - after searching here, i did the following
1) added tachAdapter (did not work out of the package)
2) tach adapter has Resitor #1 and #2 removed (this did nothing)
3) added a 15v zener diode with the band pointing towards the tach adapter (sort of worked - drop to zero above ~3000rpm)
4) swapped the 15v zener for an 18v zener - same as #3
5) by-passed MJ and the tach Adapter completed and went with pin #11 on EDIS module (CTO - Clean Tach Out) and it worked fine.
2 coil packs, tachAdapter - RPM signal drops at 3K - fixed
Moderators: JeffC, rdoherty, stieg, brentp
2 coil packs, tachAdapter - RPM signal drops at 3K - fixed
Last edited by paulc on Thu Jun 06, 2013 4:00 pm, edited 1 time in total.