yeah pcm is stock, i do have another one i could try out.
plugs are AL606 copper and wires are AC delco maybe? those could probably be changed by this point. air filter has not been cleaned in a little while. neither has throttle body. cleaned MAF this morning. before work as well as checked for vacuum leaks. didn't see corrosion but i'll take a coil pack off to look. don't know if cleaning the MAF helped yet, i don't think it did but i'll test it on my way to work. i'll retest the tcc unlock on the highway as well.