No Spark - Go EFI 4 with MSD
Looking for some help to diagnosis a spark issue. I am running a Go EFI 4 with an MSD ignition. Everything had been running great until a week ago when it died on the way home. I have checked all wiring and here is what occurs. When I turn the key on, the MSD light glows red and the starter shot of fuel is given to the throttle body. When I crank, initially some random number pops up on the display but then shows zero RPM while cranking, MSD light turns off during this process. I have checked the key wire (white) and it is staying hot during cranking. This is running on a 1999 SBC GM 350. I have pulled a plug and confirmed no spark as well.
Quick update - may help others. After pulling the MSD system completely out of the circuit and running a hot wire directly to the white and directly to the coil, experienced the same issues, small RPM at the beginning and then dropped off to zero. Opened up the distributor and started to look. Found the reluctor wheel had dropped to the bottom of the shaft and the key was in 3 pieces. made a new key, repressed the wheel and added 2 dots of JB Weld to the top and bottom of the key slot for good measure. Now running like a champ.
Huge thanks for closing the loop on this one. I doubt it happens to often, but adds another thing to think about.