I have a 94 Dodge Dakota sport 3.9L 4x4,I've changed the fuel pump,coil,ECM and I'm still not getting any spark can anyone give some tips on what might be going on....I've checked wires,fuses and I tried getting a code from the check engine light only problem is I have no check engine light.

 

ECM = the computer?

if so have you verified if your getting power to the coil?

 

Try the 3 wire splice under the PDC on left fender cut in to the wrap and find the 3 red/white wires. they usually get all gunked up or break. Look in the FAQ under will not start towards the top the link explains the splice very well.

 

Lots of trpouble shooting tips here
https://dodgeforum.com/forum/1st-gen...e-manuals.html

What exactly does "not getting any spark" mean in this context? If it does nothing when you turn the key on you have no spark. If the no check engine light is indicative of no spark check the fuses & the battery connections. Maybe when you re-connected the battery from the ECM change it didn't seat right.
If that doesn't give a spark IDK but I would suspect you plugged in the ECM incorrectly or inadvertently loosened or broke an nearby connection. Maybe the ECM is not the right one? That's always possible.

 

No check engine lights makes me believe its the splice but no signal from the crank sensor and the pcm won't ground the coil to create spark and the cam sensor under the cap and rotor can cause the problem and they all go threw the ASD circuit in the PDC.