Was having issues with engine surging very hard running roughly trying to shut down let it sit over a weekend started it again acted like nothing happened revved it up couple times shut it down when I went to start back up instant misfire ton of white smoke smell like straight gas I've since replaced the PCM with a manufactured correctly matched and the coil pack and the O2 sensor and before all this I have done distributor wires spark plugs distributor button all the way down to a plenum intake kit but the truck ran after all that it just recently started to do this after the initial issue started to misfire could it be a stuck injector fouling out my plug I went and got this new coil after it just started to do this hydrolock issue where it's cranking up half turns a few times then it will grind and stop so I replace the coil and the O2 sensor and it still did the same thing but I did not find what cylinder is possibly flooded or cleaned the plug for being fouled I'm just trying to see if there's any other issues before I go into that

 

Might try using these.

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What are you driving?