orleanzmax

iTrader: (8)

i just swapped my old worn stock motor for another stock. the car still runs much better. however. i now have the code po320. its saying the engine ignition system malfunction or misfire. my car is missing. only under load and at idle. meaning i have it in gear and idling. when out of gear it is smooth. also under wot the engine pulls smoothly. i had eveything from the old motor transfer over minus the block and heads. i have changed to new all 3 crank sensors, coils, and plugs. i have checked the harness as well. i have correct resistance and power to them. i just can't figure this out. the motor ran great before. also the sensors and coils all still work as i put it into another max to test as well. only my max is missing. i have done this swap many times. just this time i am a little puzzle. maybe i will have to change the harness to see it is shorting. i'm sure it is shorting somewhere eratically.