Hello, I just bought a 98 Caravan with a 3.0 I need to find out how to diagnose & repair code 43. Any help is appreciated, thanks in advance

 

You have a misfire situation. It would help to have a simple scan tool and that will help determine a coil pack fault or or otherwise and on which cylinder

 

I couldnt believe the condition of the rotor, cap, wires and spark plugs -this van hasnt been touched tune up wise in years.There was a .60 gap in the plugs, so I did the complete tune up. Runs much better, but it still set another code 43. Any ideas? I am thinking the coil is weak after firing that gap in the plugs.