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Jerry
Jerry, Master Mechanic
Category: Chrysler
Satisfied Customers: 17165
Experience:  ASE Master tech. 30+ years mechanic, shop forman, service manager
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Chrysler PT Cruiser: I have 3 codes P0340,P0320 and P1391.

This answer was rated:

I have 3 codes P0340,P0320 and P1391. I just replaced the Camshaft Sensor but at times, the car will just stall for no reason.

Hello and welcome, Super mechanic here. I will do my best to help you with your question.

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If you need any more on it just let me know.

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Crankshaft position sensor.
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SYMPTOM
P1391-INTERMITTENT LOSS OF CMP OR CKP

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SYMPTOM
P0320-NO CRANK REFERENCE SIGNAL AT PCM

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SYMPTOM
P0340-NO CAM SIGNAL AT PCM

POSSIBLE CAUSES
  • Intermittent Crankshaft Position Sensor Signal
  • Intermittent Camshaft Position Sensor Signal
  • Intermittent Wiring
  • Intermittent Condition
  • 8 Volt Supply Circuit Shorted To Ground
  • 8 Volt Supply Circuit Open
  • 8 Volt Supply Circuit Shorted To Voltage
  • Camshaft Position Sensor Signal Circuit Shorted Ground
  • Camshaft Position Sensor Signal Circuit Open
  • Camshaft Position Sensor Signal Circuit Shorted To Voltage
  • Camshaft Position Sensor Signal Shorted To 8 Volt Supply Circuit
  • Sensor Ground Circuit Open
  • PCM - 8 Volt Supply
  • PCM - Camshaft Position Sensor Signal
  • Camshaft Position Sensor

 

Crankshaft Position Sensor

 

 


graphic

 

 

 

 


Customer: replied 4 years ago.


How would the voltage to the PCM be checked? Or would I replace the Crankshaft sensor?

Customer: replied 4 years ago.


Does that mean the Crankshaft sensor is bad, or I have to find a short between there and the PCM? if so, how do I check the voltage to the PCM?

There are pages of testing for that but I normally replace the CKP sensor first and clear it out and see how it does. They don't normally pay diagnostic time with warrantee work. I could gather the tests for each code and put it in a PDF, if you are up for that.
Customer: replied 4 years ago.


If there are tests, I would greatly appreciate them.

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**You have to the hit happy face or a high rating for me to get paid for the answer.*****


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I have the tests in a PDF format P0320 P0340 P1391

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Thanks

 

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