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Hello. Code P0320 is a fault indicating a camshaft/crankshaft sensor performance and/or correlation problem. Replacing the camshaft and crankshaft sensor with (CHRYSLER) parts will solve that issue.
Code P0700 means the transmission computer has a code stored. You will have to have a scan tool capable of reading transmission computer codes. The code likely stored in the transmission computer is a P0725 which is due to the crankshaft/camshaft sensor failure.
The sputtering is due to improper readings from the sensors. Eventually, the vehicle will start to stall. Then as the problem worsens it will not start.
Any other concerns?
the car was running great when we bought it but has been sitting for 3 months until my daughter had the money to put it on the road ,i would start it once a week so the battery wouldn't die and today we put it on the road and this just started happening i thought is was bad gas from sitting
Bad fuel will not set a P0320 code. It will set lean/rich codes (P0172-P0174) or misfire codes (P0300-P0306). The camshaft and crankshaft sensors are COMMON to fail. Always replace in pairs. The engine computer must know the crankshaft speed and position to properly calculate ignition timing and it must know the proper camshaft position/speed to calculate fuel injector timing. The transmission needs the crankshaft speed to calculate shifting characteristics. The crankshaft sensor is likely flaking out causing not only the codes you have mentioned but also your sputter. But, like I said... replace them in pairs.