It misses only when accelerating hard. Idles fine. I can accelerate slowly with no problem. I can feel the miss around 50 mph, 200 rpm. It makes a popping sound from the engine when getting on the gas. Like exhausting out of a valve. Not sure. Replaced the TPS, MAP, IAC wires, spark plugs, k&n air filter, rotor, and D cap. Double checked the wires route. No change. Got the sensors off of a wrecked D. The only thing I can think to do now is a compression test. What to do? It also threw a po308 today on the interstate going about 75. The check engine light started blinking. WTH

 

blinking CEL is typical with misfires which a p0308 is a cylinder 8 misfire, this is the farthest back cylinder on the passenger side, i would start looking there see what ht eplug looksl ike is it clean ect.