1999 ford explorer no fire

if vehicle ran prior to engine swap need to recheck all electrical harness connections,main harnesses bolt together.check to see if any connector terminals are damaged.also start by checking all fuses in vehicle engine compartment fuse box and interior fuse panel.

Well ya the vehicle did run but the engine locked up thats why the swap. I did check all the fuses and relays they all work. I guess Im going to have to pull off the intake and check all the plug ins to see if something didnt get unplugged or smashed some how.

before you go ripping the motor apart check to see if you have 5volt reference voltage at the throttle position sensor and 12v at an injector if accessible with the key on.recheck PCM connector and grounds.can also check voltage at engine coolant temp sensor if more accesible.verify fuel pressure present at test port.watch your eyes.