Yes, now I actually remember that I did gap the plugs. And I took them off and checked them and they are all at .040 I tried them at .038 no luck, same thing. Then I tried champion plugs at .040 same story. One thing I noticed that spark plug on cyl 8 is always wet. Compression is good 145- 162 on all cylinders. Could it be injectors?
Also why I changed the coolant temperature sensor is because it was never getting to working temperature on the dash. It would get up quarter ways and stay there. After I put a new sensor it's still the same way, as per dash it gets warm quarter way.

 

You mean fuel sync? What's the condition of the wires cap and rotor? What temp t stat is is in it?

 

No what I meant is maybe cyl 8 or few more injectors are bad? Is it possible? And instead of misting for proper combustion it squirts a bunch a fuel at times? I'm not 100% sure about t stat but I'm pretty sure it's 192F . Maybe stuck open? Or faulty dash? How can I check the actual temperature, or or is there a trouble shooting procedure to determine where is the problem?
Fuel sync was done and is good. And cap, wires etc are good. Distributor, wires and coil are brand new!
But I will check that again!

 

You can check the coolant temperature easily with a laser temperature gun (here's an example - https://www.harborfreight.com/121-in...ter-63985.html). You can also check to see what the PCM is seeing from the temperature sensor by plugging in an OBD2 scanner and checking the engine temperature reading there.

 

Take the plug out and let it sit overnight, That should be enough to let it dry out. Unless you have a injector that's leaking. Put the plug in and start it. Make sure you have spark to #8. If the misfire is still there remove the plug and see if it's wet.

 

That's pretty much how these injectors work when working properly, there no real atomization like on a diesel, they shoot fuel in, compression atomizes for ignition.

If you recently replaced the wires, that doesn't mean they're good, I would verify spark both with a tester and/or by removing the plug and checking it against the engine. That way you know both the wire and plug are good if you have a good spark.

 

I actually tried doing that with one Scanner and it showed n/a for temperature. And now I tried with a different one and it's showing temperature 190-195F when driving and 185 when idling.

 

There is spark

 

Just to confirm, an ODB2 scanner is showing you a normal temperature? If the temperature the PCM sees is consistently on the cold side, you either have a bad thermostat (sticking open), bad temperature sensor or a wiring issue. That will also cause the engine to not run well, too.

 

Yes correct OBD2 scanner is showing that it gets to working temperature.