I replaced map sensor 02 sensor and pcv valve ran fine for an hour after that then started act funny again. Surges at 40-45 mph feels like your on a boat. Then coming to a stop or at idle it goes vroom vroom like I'm feathering the gas pedal I also changer the cts can't find a vacuum leak seams to run fine if I beat on it, injectors spray. Thanks. I tried uploading a video but it won't let me. Maybe I can email it to someone who had the same problem?