Hi Scotty I’ve got a 2002 Ford Windstar 112,000 miles. Going over 40 mph it sputters on acceleration but sorta calms out around 60+ so long as I don’t accelerate hard or go up heavy hills. Check engine light on, mechanics say it could be bad catalytic converter, throttle position sensor, pcv valve, mass air flow sensor, carbon build up, bad plugs and wires or transmission issues. I’ve got no issues starting up & before 30 mph. No rough idle. I’m afraid to begin throwing all this money at all these different “could Be” issues. Could you guess at what it could be? Thanks for all you do.