Anyone have any information on the coil pack. What should it read between the primary windings at the coil plug? I get 1.3 ohm between outside two, and 0.7 ohm between either outside and the inside. Secondary windings read 12ohm.

The #2 spark plug ejected itself from the head and tore the spark plug wire in the flight. Got a time-sert and installed the plug seemingly successfully. Engine will start/run but not on all cylinders and throws the P0302 code for misfire of said system and you can smell it is running rich that fuel is not being burnt. Removed code with reader, fired again, same result.

I am kinda thinking the part of the coil pack got fried in plug flight while tearing the plug wire.

 

Coil Specs
So it looks like the MSD ignition, has a 0.51ohm in the primaries. So I am guessing our OEM coil pack is or should be 0.7 ohm between the pins?!? anyone can confirm this? If so me getting .7 and 1.3 means it is bad?

MSD coil specs
Turns ratio: 77:1
Primary resistance: .51 OHMs
Secondary resistance: 12K OHMs
Inductance: 7mH
Maximum voltage: 36,000 Volts

 

Ah, ha!

So I pulled the fuel pump fuse, and tested the plugs for sparks with extra spark plug. All good. Put plug wires back in, fuse, fired up! Rough at first.

I think that cylinder was a bit flooded (plus some grease) and turning over without fuel got that out so it would fire with better a/f ratio. Still threw a code, cleared it, and runs like normal now.

Good enough for a Chemist!