Topic: Tach install on ecotec swap
Sorry but I’m a total idiot when it comes to anything electrical.
Against our better judgement we swapped in a 2.4L LE5 into our NA Miata.
I just want a tach. The inter webs said to get an MSD tach driver like the 8913 and use it to drive a tachometer and everything will be easy button.
I’ve got the MSD box wired between what should be the 12v wire to the #4 coil and I have it running a cheapo Autogage tach with a shift light. All I can make it do is sporadically give a reading between 500 and 1000 rpm. Granted that tach has been in a box for a couple years and all the connections are just twisted together to see if it would work before I start soldering stuff. But that still seems wrong.
What obvious dumbass thing am I doing?
Help in the fight against Neuroblastoma, a devastating childhood cancer.
http://emilyspowerforacure.com/