Megasquirt MS V3 wiring question
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Senior Member
Joined: Oct 2005
Posts: 417
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From: High Point North carolina
MS V3 wiring question
Ok well I finally have a V3 MS built tested and installed in the car. I have 1 wire thats not hooked up. Its the pin36 coil/ig module wire off of the db37. All my ignition is hooked up using the built in VR circuit and 1 additional LM1815 circuit. Im wondering if I need to hook this wire up for the MS to see RPM? Maybe a stoopid question. Either way if anyone with a running car with MS could chime in it would be appreciated. Thank in advance.
MegaSquirt Mod
Joined: Sep 2004
Posts: 4,721
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From: Maryland
you don't need to hook pin 36 to anything...
However, to get ignition, you need to add pullups from +5v sources to the negative leads of the LEDs, and then run wires from those leads to spare pins on the db37, and hook those to your ignitors the way it's mentioned in the FAQ
However, to get ignition, you need to add pullups from +5v sources to the negative leads of the LEDs, and then run wires from those leads to spare pins on the db37, and hook those to your ignitors the way it's mentioned in the FAQ
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