Jeep Wrangler Forum

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barcand 08-16-2010 01:20 PM

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?

signguy62 10-11-2014 06:48 PM

Check the connections between the sensors and the wiring harness. They get dirty, wear and get loose creating the intermittent signal.

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