Need some insight please

I'm at a loss right now. Car issue, random misfire, enough to cause the engine to stumble to about 200 ram and catch itself or will die. On load random misfire can be felt and will sometimes bring rpms down to stall engine even with load still applied. No codes being thrown.

What I've done to fix: replaced fuel filter. Replaced iacv. Cleaned maf slot style. Pulled all spark plugs, gap is .30 but they all had a ton of carbon build up on them. Pulled injectors and visually inspected for clogs. No vacuum leaks that I can find. Oxygen sensors replaced less than 2k miles ago.

Car is starting to push medium thickness white smoke(smells like excess fuel, not the sweet smell like coolant burning). And under load that turns to black smoke. No foam on dipstick. No oil in coolant. Haven't checked oil from oil pan. I don't have an ohm reader to check voltage on coilpacks and injectors. But if either of those were bad, it would throw a code right? Issue started just a few weeks ago and has gotten to the point that the car is undriveable because it dies right away. 24kmiles. Blown head gasket??? Bad injectors? I don't have a data log reader, just a code reader.
Thanks for reading.

Are you still returnless? If so have you checked the FRPS?

Still return less. I have the little disk in the frps.

Still return less. I have the little disk in the frps

Pull the vacuum line off the FRPS and cycle the key a couple times to see if fuel will leak out.

Just pulled vacuum line off frps. No fuel in line. Cycled the key and then started engine. No fuel present. No change to erratic idle with vacuum line on or off frps.

Cobra_keith said:

Just pulled vacuum line off frps. No fuel in line. Cycled the key and then started engine. No fuel present. No change to erratic idle with vacuum line on or off frps.

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Could you feel vacuum on the end of the line? That's not good if you don't.

No I didn't feel vacuum. I put my thumb to the line and didn't feel and pressure change.. Not good as in replace the frps or as in a larger issue?

Check all your vacuum lines. Our cars are getting old and they tend to dry rot / crack. I've seen more and more issues like this pop up and a lot of times ends up being a vac line.

03cobra#2 said:

Check all your vacuum lines. Our cars are getting old and they tend to dry rot / crack. I've seen more and more issues like this pop up and a lot of times ends up being a vac line.

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This. You should feel vacuum on the end of that line. Maybe it popped off on the other end.

I'm trying to upload a video, but it isn't loading. Went and bought a $146 frps. Replaced it. I do have vacuum to the line. But that wasn't the fix, and now there's fluid being pushed out the exhaust. It's mixed with all the carbon build up so hard to tell if it's fuel or coolant. But I'm suspecting coolant.

Time for a compression test.