Hi I have a 1987 bronco 2 2wd manual 2.9 multi port fuel injected and it's running like crap, at idle it misses very intermittently and when you give it more gas it hits 2 grand and tac and engine start missing like crazy and when you accelerate past that it misses less sporadically but still isn't running good at all, Im in deep a lot of money in this truck and I'm trying to sell it and I can't sell it like this, I've put a new engine in the car it was a re manned and it was really low miles, I've replaced the ecm, tfi module, tps, iac valve, pcv valve, fuel pressure regulator, fuel filter, cap & rotor button, and ignition coil. I've run into a dead end its past my mechanical knowledge I work at a garage so this is my thing, it has stumped me and two other mechanics at our garage. If anyone knows what this is and how to fix it please reply I would really appreciate it.