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i have a 2002 grand caravan flex fuel seems like it has the same problem like yours when it gets hot after running for 15min start messfiring and backcfire and if it get too hot it will stall ,it it cool down for 15 20 min it will run again normally the code reader showed up po300,po303 po306 , one mecanic sugested me to change the coil pack changed it still same then told me to change injectors cylinder 3 and 6 i havent done it yet should i try first the cranckshaft let me know please thanks for any help????
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I would monitor the crank and cam signals along with ignition coil current and injection if you have the four channel scope. Anytime you have a Chrysler with disrupted ignition and/or injection, the cam and crank inputs are a suspect.
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