Postby doctahjones » Wed Feb 12, 2014 10:39 pm
wonder if a few things could be happening although these are just pure guesses as i've never heard of such a problem.
maybe throttle position sensor? i had an acura once that at 'street' speeds was fine, but at highway speeds it would basically go into limp mode.
maybe dirty/malfunction MAF sensor? you could try cleaning it and then disco'ing your battery for a few hours and have it relearn...
lose air intake hose? maybe the engine is sucking in air behind the maf, which is flooding the engine with air?