I have Toyota 1994 xle 6cylinder. It smells of gas in the exhaust, also when driving it will just turn off, then I have to wait about 45 minutes then it will start up again.
I changed the fuel injectors for cylinders 246 (front), coils, and pigtails or wires, and new plugs. Also, replaced speed sensor too. But the problem code p0306, cylinder 6 misfiring code. Found very low compression in that cylinder (55) vs around 125-130 for 2,4. Exhaust smells of gas too. ANY SUGGESTIONS, PLEASE, THANK YOU

 

Could be a failed O2 sensor.

 

would a failed o2 sensor cause low compression in just one cylinder, and not the rest? #6 is 25 psi, and 2,4 are normal. Help?

 

No.

25 psi or 55 psi? That's pretty low.

Can have someone to what is called a leak down test. This test can determine if the problem is piston rings, valves, etc.