no spark

[prattmister]

I have 1985 Ranger 4 wheeldrive. My problem is I am not gettting any spark. I have changed The coil,TFI module,and the pickup coil in the distributor.I have also ran a test light at the coil . I have power to the coil but no ground .I have ran continuity test on both ground wires that lead back to tfi module and computer. The wires show good no break in the wires.I think I have a bad computer but I am not sure If that can cause this problem.Is there any way to check the computer? Or can anyone tell me if I am Missing something simple and making this more complicated ?This problem is driving me insane.

 

[dangerranger83]

My dad had the same problem and it tured out to be the plug that goes into the TFI module (bad wire on the plug).