ROUGH RUNNING

  • Tiny
  • Lindaw
  • 2002 Jeep Liberty
  • 6 CYL
  • 2WD
  • automatic
  • 85,000 miles

It's 3.7 v6 Jeep Liberty, We have replaced a cam senor, code 131, it seem to run hot. Won't get over 2000 rpm, or shift, want to stall, runs rough

Wednesday, November 24th, 2010 AT 2:52 AM

5 Answers

  • Tiny
  • Jacobandnickolas
  • Expert
  • 68,287 posts

A po131 indicates bank 1 sensor 1 O2 sensor is shorted to ground. Check the wiring to the sensor first and make sure nothing is shorted, melted. If it is good, chances are the sensor is bad.

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Wednesday, November 24th, 2010 AT 2:59 AM
  • Tiny
  • Lindaw
  • Member

We took it to a place they put a computer on the jeep, it showed a code po340, p0320, p1391. We replaced one of the senors. But the car when it gets to 2000rpm, it won't shift, runs rough, wants to stall. I'm sorry we are getting information as it is given to us. All the help you can give us would be appreciated. Thanks

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Wednesday, November 24th, 2010 AT 3:55 AM
  • Tiny
  • Lindaw
  • Member

We took the car to a auto zone they hook a computer to it. It came back with codes of p0340, p1391, p0320, It still won't go pass 2000rpm, want shift, runs rough, wants to die. Any information would be appreciated. Thanks

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Wednesday, November 24th, 2010 AT 3:58 AM
  • Tiny
  • Jacobandnickolas
  • Expert
  • 68,287 posts

P0340 Camshaft Position (CMP) Sensor Circuit
P0320 Ignition/Distributor Engine Speed Input Circuit Malfunction
P1391 Wheel Speed Sensor 1 - G - Sensor Circuit Performance

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Wednesday, November 24th, 2010 AT 2:29 PM
  • Tiny
  • Jacobandnickolas
  • Expert
  • 68,287 posts

I would recommend starting with the cranks sensor. Have it checked.

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Wednesday, November 24th, 2010 AT 2:29 PM

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