Ballast resistor wiring
Thats where I would start also. Make sure that ECU has a good ground also. Then if it is the same you have to make sure you are loosing spark. That idle and then dropping it in gear can make it stall also.
Thats where I would start also. Make sure that ECU has a good ground also. Then if it is the same you have to make sure you are loosing spark. That idle and then dropping it in gear can make it stall also.