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Q: How can i be sure my ecm is out on 1998 Dodge Grand Caravan

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
my 1998 grand caravan is firing on one cylinder coil pack only puts out on front cylinder on far right all injectors are hitting ,My cruise control quit working about 20,000 miles ago and all the lights on the ac and heat controls blink on and off and every other day the guages go out ounce its turned off and cools down gauges start working again. Ive checked everything i could think of such as cam and crank pos. sensors all cruise control is still intact tried to take a reading with a snap-on 5,000 dollar obd reader no comm. plugged in a 150.00 dollar actron reader and pulled 3 codes 1st throttle pos. sens. low voltage,2nd was crank pos. sensor and cant recall the third cuase it only read them ounce now it wont comm. with it either,My question at this point could it be anything other than the ECM PLEASE HELP
No car image 94a1663db56199c5353592009e34aaa51078a2469bed068bb8d6f0ba43accf97
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