2004 Toyota Tacoma pre runner, p0301 misfire

Hey everyone, this is my first post on here and I need some help with my truck I'm getting a misfire in cylinder one, 238,xxx miles 2.7 l. spark plugs are new , ignition coils are fine, here's the compression.
Cylinder 1- 90psi with wet compression 120
Cylinder 2-150psi
Cylinder 3-150psi
Cylinder 4-180psi
I changed the fuel filter and the pcv valve, rough idle,loss in power. I need some help

 

Welcome to YodaWorld. Possibly #1 fuel injector O ring, exhaust valve or compression rings. Test compression on 2 and 3 wet. Are you getting any cyl head blowby or signs of compression leaks. Recent over heating?

 

I have no blow by, no compression leaks just low because of the piston ring I think, just replaced the radiator no overheating at all

 

Have you checked for intake manifold cracks?

 

No cracks , nothin hoses are good too on everything

 

Is it consuming oil/blowing smoke?

 

No smoke!

 

With that big drop in #1 compression rings would blow smoke. No smoke/valves.

 

I can testify there is no smoke

 

Have you done a compression leakdown test ?

 

No leak down yet

 

Without knowing your skills/abilities/tools best advice is dont drive it. The difference in compression between cylinders rules out any cheap easy fix.

 

Haha, I've been driving it like this for almost 9 months now, I have all the tools in the world just throw ideas

 

Well if doesnt smoke, consume oil or have black soot on tailpipe or plugs its not rings. No cracks in intake manifold or head blowby. Its time for a valve job and head check/resurfacing, Or keep driving it till you drop a valve.

 

Perfect, THANKYOU, I will keep you updated when I get that done!