Did wire and alt upgrade. Cleaned and ohm tested all grounds. Crank no start, no spark, no code read port connectivity fails,,temp pegged to hot, key on. All fuses inside and out good. 12v at main relay, coil plug, reader port, ign switch. No 12v at fuel pump relay (no prime), no 12 at Cam or crank sensors. Temp swapped these parts from shelf no change: ecu, ign switch, relays, battery is new.