Jeep Liberty stalled out and wouldn't start till it cooled down

Tiny
KEV1977K
  • MEMBER
  • 2003 JEEP LIBERTY
  • 4WD
  • AUTOMATIC
  • 150,000 MILES
2003 jeep liberty stalled at red light but started right back up. Half a mile and stalled again. Waited, got it home and it wouldn't start unless I let it sit a while and cool off. There's coded coming up of p0340, p0320, and p1391. Does anyone know the problem and is it expensive to fix? Could I attempt to do it myself as I know almost nothing about cars?
Monday, April 14th, 2014 AT 12:17 PM

1 Reply

Tiny
CARADIODOC
  • MECHANIC
  • 34,400 POSTS
P0320 - Ignition/Distributor Engine Speed Input Circuit Malfunction
P0340 - Camshaft Position Sensor Circuit Malfunction
P1391 - Intermittent Loss of CMP or CKP

These codes are all related so I'd be looking at what they have in common. Both sensors share a common 5.0 volt or 8.0 volt feed circuit and a common ground return wire to the Engine Computer. Other sensors share the ground return wires, and since they're not setting fault codes, start by examining the wiring to the cam and crank position sensors.
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Monday, April 14th, 2014 AT 12:46 PM

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