I'm having lots of problems with mine. I'm new to the forum and this is my first Dodge. I bought 1990 D150 for my son. Truck ran great, just smoked alot. Backed in the garage, took top end off, had the heads redone. Put it back together, no spark, no fuel. If I run a jumper from + side of Battery to + on the coil I can hear the fuel pump running, just cranks will not start. I can jump across the ASD relay and the pump runs, power to the + side of coil, still just cranks. I'm unable to turn the key for the codes because the check engine does not work, the bulb is fine. I put a new relay in still nothing. Parts store says a new hall effect is $80 and an ECM $220. I really don"t want to change parts based on a gues. I have now idea where to start. The only wiring that got disturbed was the harness that runs down the right side of the engine, wires for the Tbi, alternator, sensors on the intake and the distributor. Would appreciate some help.