Swap Engine

Have 2002 v6 ford ranger that had misfires? 111000 miles and the coil area seamed to tingle my hand, posted question earlier and got responce to replace coil and plug wires, just got plug wires- - I noticed that the sequence to wires to the coil were reversed the proper installation- I had work done on truck 10 months ago. Everything seemed to be ok. The 123 that should have been on the left side of coil block were on the right and the 465 were on the left. Having new wires I wired checked continuity of each and attempted to start engine, turn over but no start, I stopped and have concerns before replacing wires had just a bad misfire and hesitant accelleration, now cant crank

Each plug double clicked on incursion, can not tell about spark
gap because I cant crank, I use to have excellent ignition this
morning, doubt that changed

Starter engages fine, engine wants to turn over and crank but does not

1988 engine rebuilt 0 miles on it would a rebuilt engine from a 1988 ranger 4x4 fit into a 2002 ranger edge? If not, what modifications would I have to make?

I dont see a correlation. Are we over looking that all this was fine this morning and all that was done was changing plug wires
to correct a misfire and hesitant acceleration?

No. The engine will not crank

back up to the original problem

I have a 2000 ford ranger with blown motor. However I have a replacement motor for it(used). The motor is from a 2003 Ford Ranger and it is the exact same size motor. The motor is a 3.0L V6 (not flex fuel). I need to take and use the harness from the blown motor and use it on the replacement motor. Is there a guide or any type of diagram that will show me what needs to be plugged in where and what sensors go where? I was told by a mechanic that when doing an engine swap it is a common this to swap the wiring harness(providing its still good). Is this true?

Are there any modifications necessary if I replace with a 3.0? What other cars have compatible engines?

I have a 98 ford ranger. In 98 the motor switched from 2.3 to 2.5. They are expensive and hard to find. Can I put a 2.3 from say a 96 or a 97 in the truck and have all the vacuum hook up properly? Also, will the computer run the 2.3? Lastly, will all the smog control be the same. I'll chang out the computer if neccesary but the smog stuff has to be the same as the 98 to pass inspection. Thank you for your time.

I would not suggest changing displacements. I have a Mazda B2500 that I considered doing this on. In order to do this, I found that the entire engine electrical harness (and yes, the computer) in addition to fuel injection parts would have to be changed out. Found a pic-a-part yard in Central Tx that had no less than 4 engines there. Motor cost 300.00 with the core charge and the tax. Turned out to be the cheaper alternative in the long run.

I changed the engine control computer and now my truck wont start it just sounds like its tapping I dont even know where to start