I have a 99 24v automatic. I was wondering if the engine wiring harness is the same as a manual. My harness was hacked from previous owner and found a good deal on another one, but it’s out of a manual truck. Thanks in advance. 

They will be different but how much I dont know. i think you would have to compare them side by side. The auto tranny does have wiring connections the manuals do not.

Make sure you have the same year and options there was changes like crank and cam sensors or just cam sensor. The MAP sensor plugs are different.