Ok my crx has a DOHC ZC swap and a pm6 ecu. Was driving to work today and basically all of a sudden my car was strangely loud and lost a ton of its power. Basically only way to describe the sound is it sounds like a big diesel, most noise coming from engine bay and heard out the intake a lot. code blinking for o2 sensor but its been like that a long time and i never seen an o2 sensor do this...other than that no codes.... The car only revs maybe to 4 then seemingly dies right out, stays loud but doesn't accelerate further....its sluggish to accelerate rite from the get go...seems to rev out ok when its not in gear...i know the car well but i got nothin for this problem... anyone ever see anything like this.