grandpaking
New member
I have a 1994 Mercruiser Alpha One V6 4 Barrel 4.3L 262 CID Gen II Serial # 0F281678. I get spark out of the coil but not out of the distributor. I have replaced the coil, distributor cap, rotor assembly, and sendor assembly (twice). Have run the "Troubleshooting Thunderbolt IV Ignition System" test several times and it says to replace the sensor. Can I remove the module and bench test it with a high degree of accuracy? If, yes, tell me how. If no, tell me what else I can do to find the problem. I will appreciate any help you can give me.