I have a 1997 Jeep Wrangle Sport (4.0 inline 6) that is throwing a code of P1391 (Manufacture Ignition System or misfire). I have already replaced the Crank Sensor and Cam sensor (distributor pickup). I am not sure what to do, I have read about some people replacing the whole distributer. Any ideas?
10-11-2014 07:48 PM
Check the connections between the sensors and the wiring harness. They get dirty, wear and get loose creating the intermittent signal.