Mopar ECU (brain box) Problem?

[Jims50chrysler]

Hi all.

I am hoping to figure out if this brain box is no good I am converting a 318 over to this style ignition for my 1950 Chrysler that I am building. I ran all the wires and fortunatly before I applied any power to it I checked for continuity and found with the ignition swich in the run position I had what appeared to be a dead short after some digging it appears to me that this brain box is no good if I check continuity from pins 1,2and 4 to the box itself it indicates that I have continuity....that does not seem right to me, I was hoping that someone might have a box laying around to do a similar check, if the results are different then to me it would confirm that the box is bad.

thanks in advance.

Jim

[47droptop]

Hi Jim. I've been a mechanic for 26 years and have never seen a module cause a dead short. I don't have a module handy right now to check for you but I would make sure you have it wired correctly. You're #1 terminal (on your pic) should be coil -ve, #2 is ign. power, and 3 &4 are your distributor wires. If that's the way you wired it with ballast resisted ign. power to coil +ve, then it's wired correctly and when you crank it over it should pulse coil -ve. Hope that helps.

Glen

[Jims50chrysler]

Thanks 47 droptop I will check the wiring again next chance I get in case there was a misprint on the instruction sheet, I do agree a dead short is a big streach but it seems like having continuity on those 3 poles can't be right either. the car is far from ready to start right now I am just building the wire harness. I will let you know what I find.

Jim