MSD 6A + LH 2.2 Help Needed.

[maxitoman007]

Figured I should update...

I ended up buying the MSD tach adapter as they recommend it for “no start” situations on import vehicles. Wired it up, no start still.

Called MSD (they were very helpful by the way) and they talked me through diagnosing the install. They asked me if there was anything else connected to the coil and that’s when I noticed a wire coming from a little grey box beside the coil going to the coil. Disconnected the wire and voila! LH 2.2 MSD 6A spark power.

Hopefully this helps out anybody who faces this issue in the future.

[dbarton]

Originally Posted by maxitoman007

I noticed a wire coming from a little grey box beside the coil going to the coil. Disconnected the wire and voila! LH 2.2 MSD 6A spark power.

Hopefully this helps out anybody who faces this issue in the future.

Connected to positive or negative side of the coil? A photo would help a lot more.

[bobxyz]

Great, thanks for posting the follow-up to this puzzle. A+ for effort and persistence!

I'd guess that the gray box is some sort of noise suppressor to keep static from the radio. It apparently also does a good job of suppressing the multi-spark-discharge signal.

[dbarton]

Originally Posted by bobxyz

Great, thanks for posting the follow-up to this puzzle. A+ for effort and persistence!

I'd guess that the gray box is some sort of noise suppressor to keep static from the radio. It apparently also does a good job of suppressing the multi-spark-discharge signal.

Ok. This thing. It's connected to the positive post. I can't guess as to how that interfered with MSD.
Dave

[maxitoman007]

Originally Posted by dbarton

Ok. This thing. It's connected to the positive post. I can't guess as to how that interfered with MSD.
Dave

That would be the thing. I'm not sure either, however I can confirm it was the issue (for me at least).