starts won`t run on 2003 Mazda MPV

cranks ok engine runs but won`t stay running you can hold throttle down an engine will try to run but has no power. scan ecm has no codes.has red spark at plugs.

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1 answer
You may have fuel pressure problems or it's possible that the exhaust system, like the catalytic converter or muffler, is plugged, those are about the only things I can think of that wouldn't generate any codes. You might need a Mazda or Ford specialist.
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