Hello everyone,my problem is with a 2002 4.7 Dakota---- code 320,replaced cam +crank sensors + reset codes. 320 keeps coming up (Napa brand parts) starts great,till idle is reduced then stalls, try to start it will backfire thru the (forget the name/what used to be the carburator) .The tacometer goes crazy ,to start seems the battery will be dead,will start when cool---- repeat Thank You

 

P0320 is a crank sensor code. These trucks are notorious for not liking aftermarket parts in critical locations, and the crank sensor is at the top of that list. However, it may not be the sensor at all, could be just a bad connection, or questionable wire......