2000 Dodge Intrepid Cold Misfire P1391

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JEFF HANNAH
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  • 2 POSTS
2000 Intrepid (manufactured in 1999, 2.7, 147K miles, Calif. ems.

Error Code P1391. Have replaced Cam sensor, crank shaft sensor, used PCM.

When cold outside, below 40 degrees F, car misfires and jerks repeatedly. Sometimes a few times, sometimes a lot, at low speeds and highway speeds.

Please help. Wife is now driving my truck.

Thanks.

Jeff
Dec 11, 2006 at 5:07 AM
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CARUNDELL
  • ✓Experienced Mechanic
  • 602 POSTS
[quote:cb7e176fab="Jeff Hannah"]2000 Intrepid (manufactured in 1999, 2.7, 147K miles, Calif. ems.

Error Code P1391. Have replaced Cam sensor, crank shaft sensor, used PCM.

When cold outside, below 40 degrees F, car misfires and jerks repeatedly. Sometimes a few times, sometimes a lot, at low speeds and highway speeds.

Please help. Wife is now driving my truck.

Thanks.

Jeff[/quote:cb7e176fab]

Jeff,
p1391 is an intermittent fault for cam/crank sensors and could possibly be a connector/wiring harness issue. Additionally I would call chrysler w/ your vin # to see if there were any TSB's or service bulletins requiring a "reflash" of your PCM

Chris
Dec 11, 2006 at 5:23 AM

Suggested Repair

Inspect the cam and crank sensor connectors and wiring harness for an intermittent fault. Also contact Chrysler with the VIN to check for TSBs or a PCM reflash.

Conversation Summary

A 2000 Dodge Intrepid with a 2.7L engine and code P1391 misfires and jerks when the outside temperature is below 40°F, at both low and highway speeds. The cam sensor, crankshaft sensor, and PCM have already been replaced. The expert said P1391 is an intermittent cam/crank sensor fault that may be caused by a connector or wiring harness issue, and recommended checking Chrysler for TSBs or a PCM reflash.

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