Trying to start truck after 3+ years of it sitting. I had pulled the 5.3L Vortec/h55 a while back, sold the h55 and installed an nv4500. Cranks over fine but it appears it's got no spark. I cannot find the temp sender wire from the harness and the tranny wires are not connected, other than that, everything seems to be plugged in. The harness came from Fuel Injection Specialties and they are supposed to send me a schematic but I am still waiting. in the mean time, any suggestions?