Hi,

I'm trying to install an MSD BTM on my boosted '84 318i... here's the way I have it hooked up:
- white wire from BTM to signal wire from ignition module
- orange wire from BTM to coil - (replaces signal wire from ign. mod)
- red wire from BTM to coil +
- black wire from BTM to ground
Car will not run with this hook-up... ignition pulse is present when checking at coil -.