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2001 town and country 3.3 flex fuel came as no start, replaced spark plugs and now starts but will not idle. runs decent at highway speeds. hard starts and seems to be over fueling. replaced injector harness with no change. starts and dies within seconds. any ideas?
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Try testing mass air flow sensor, air temperature sensor, and throttle body. Another thing can be a bad or frozen fuel injectors. Check your fuel injector harness for the proper voltage.