Question about 1999 Dodge Intrepid

5 Answers

Won't run Have 1999 Dodge Intrepid. Have a P01391 DTC. What are the possibilities? I'm a Nissan Diesel Tech and have a background in automotive. I have explored so many possibilities it makes me dizzy.Engine will start and run until the key is released.Disconnect the cam sensor, will run between 1500 and 2700 rpm. Have replaced cam & crank sensors. Have access to a $4000.00 diagnostic tool. Desperate TB

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  • trybker May 09, 2009

    There are times the engine runs like a sewing machine. Once for 9 days the next for 12 miles.then it goes back to a stall out no run situation.after setting a while (1-3 days) it will start and run fine for a while.It is hard for me to believe that there is a timing issue. But is there a way to check the the sync. of the two without tearing the engine down for inspection.

  • trybker May 09, 2009

    Have already checked ignition switch. Replaced fuel pump and checked relay and circuit. Every thing checks out OK. Failed to mention that the
    battery light comes on a lot when the problem occurs.

    Thanks
    TB

  • trybker May 10, 2009

    Engine will run for 1-3 seconds , sputter and quit. The last codes pulled were a P0622 and P1495. Still my question goes unanswered about the P0662 code. Have asked 20-30 times. If their is a problem with this circuit will this cause the problem. The output to the battry is ok, volts and amps.

  • trybker May 10, 2009

    The answer given has no bearing on my question. My Dad is not involved.And I do know the meaning of "out of phase". I am a Nissan service tech.

    Thanks
    TB

  • trybker May 10, 2009

    It is a 2.7

    Thanks TB

  • trybker May 11, 2009

    Come to find out, the 1495 code is a code that is "stuck" in a replacement pcm I tried in it. I have 3 pcms I have tried in it and the most prevelant code that returns is the P1391. When this problem first arose (3 weeks ago) I changed fuel pump, crank, cam sensors, spark plugs and a few other things.I have done a relearn on the sensors. The car ran fine for 10 days . Then it happened again and I can't get it to run right since. During the period of it running ok, the engine light stayed on and there was always a P1391 code present. I'm wondering if the timing chain has jumped a tooth or two. If this be the case would it give the symtoms of starting for a second or two then dying? Maybe this is because it takes the PCM that long to compare the signals and shut it down? The battery light and code come into play only after I try to force the acceleration of the engine.

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5 Answers

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  • Dodge Master
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Good afternoon trybker,
Can you tell me what your engine displacement is, 3.2 or the 2.7?
How many miles do you have on the vehicle.
Let me know.
Regards,

Posted on May 10, 2009

  • 1 more comment 
  • Bruce Bracey
    Bruce Bracey May 10, 2009

    The P0622 is related to the generator field control circuit to the PCM. For what ever reason, the PCM is detecting an open or short to ground or battery on that circuit line. (PCM C1-08) This one will cause the alternator light issue as it will no longer produce electricity. If the vehicle system voltage reaches th 10 to 11 volt range, some of the control modules can begin to get "flaky" as I'm sure you know.



    Have the PCM connections been disconnected and the ignition key left on?



    As far as the other codes go,

    The P01391 CKP Or CMP Sensor Signal Intermittent ( PCM C1-32 and C1-33)
    Have you performed a CKP and CMP Sensor relearn with your scan tool after the sensors were replaced, could be adding noise to the problem.

    The P1495 Leak Detection Pump Solenoid Circuit Malfunction (PCM C1-20)

    The PCM has lost control of the pump solenoid control circuit.



    As you can see, all the codes presented are in the PCM connector 1 with pins 08, 20, 32 and 33 displaying a connection issue. I would probably start there and verify continuity and voltage drop to each component and make certain no connection or corrosion problems exist at the connector.

    Disconnect the battery negative and positive cables (clearing modules for reset) , fully charge the battery and perform the relearn for the CKP and CMP.

    Start there, and bring the car back to base line level. Run the car and see if you have any of the issues or new codes appear.

    Good luck, let me know.

    Regards,

  • Bruce Bracey
    Bruce Bracey May 11, 2009

    It is a possibility the valve timing could be off, usually the engine will have a sound similar to "laboring" or lugging with a throaty sound to it and possibly an intake flutter.
    A compression test with lower than normal compression would indicate a valve timing problem due to the overlap miss-match to the crank shaft.
    Check and let me know.
    Regards,


  • Bruce Bracey
    Bruce Bracey May 19, 2009

    Any luck yet finding the issue?

    Let me know.

    Regards,

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  • Master
  • 413 Answers

DO U UNDERSTAND THE MEANING OF "OUT OF PHASE"?? IT IS THE MECHANICAL TIMING OF THE SIGNAL FROM EACH SENSOR TO THE ENGINE CONTROL COMPUTER, WHAT IS THE CODE? ALSO TELL YOUR DAD (NICELY) THAT ATROUBLE CODE DOES NOT ALWAYS MEANS A FAILED SENSOR, ONLY A PROBLEM WITH THE SIGNAL, THAT CAN BE THE WIRING, IT CAN BE MECHANICAL OR IT CAN BE THE SENSOR, MANY POEPLE DON'T GET THAT AND SPEND TON'S OF MONEY CHASING CODES.I HAVE DONE THIS FOR 35 YEARS AND AM SURE OF WHAT I AM SAYING 100%

Posted on May 10, 2009

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  • Master
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You mention that lights comes on when it happens, try looking for the alarm circuits, this might be the one causing you trouble.

Posted on May 09, 2009

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  • Dodge Master
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If the engine stalls when the key is released then u have two possibilities, one is the electrical ignition switch contacts are defective, have seen that many times , the other is the fuel pump run circuit is open, this can be caused by a defective fuel pump relay, if this were the problem the engine would stall slowly because it would run out of gas, so sputter and die, I would go with an ignition switch problem. here is the part number and price at rockauto.com
ACDELCO Part # E1428E {replaces C1438 #19021136, 89058119, C1438} price $31.79
SWITCH,IGN & START

Won't run - 99f52c5.jpg

Posted on May 09, 2009

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  • Master
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Here's what Chilton has on the P01391:

Trouble Code: P1391 (3.2L V6 VIN J Auto)
CKP Or CMP Sensor Signal Intermittent
Number of Trips to Set Code: 1
OBD II Monitor Type: CCM Details
Indicators: MIL Details

Trouble Code Conditions:
Engine started, engine running, and after every 69-degree CKP Sensor leading edge and trailing signal edge is determined, the PCM updates this data and compares it to the true CMP Sensor port level. If the PCM detects a disagreement between these two valu
Possible Causes:
  • Camshaft Sensor is not installed properly
  • Engine valve timing is not within specifications
  • Perform a CKP and CMP Sensor relearn with the scan tool
  • Tone wheel or pulse ring is damaged
Test CMP :
  1. Unplug the CMP sensor connector.
  2. Turn the ignition ON.
  3. Using a voltmeter, measure the voltage from the wiring harness connector 8-volt supply circuit (orange wire) to ground.
  4. If the voltage is 8-9.5 volts, skip to the next step.
  5. If the voltage measured is lower than 8 volts, or greater than 9.5 volts, the CMP sensor is not receiving the correct current to function properly. There is a problem in the wiring or related components.
  6. Turn the ignition OFF.
  7. Attach the CMP sensor wiring and engine wiring harness connectors back together.
  8. Attach a dwell meter to the battery. Attach the lead probe of the dwell meter to the sensor signal wire (light blue wire with dark blue tracer) by back-probing the connector or by using jumper cables between the terminals.
  9. Place the dwell meter out of the way of any moving components of the engine, and in a position in which it can be seen once the engine is started.
  10. Turn the engine ON.
  11. Watch the dwell meter for one or two minutes while the engine is idling. The dwell time shown should be a steady 49-51 percent. If there is any fluctuation, or the dwell time is not 49-51 percent the CMP sensor is defective and must be replaced with a new one.
I hope this helps with your problem and best of luck to you!



Posted on May 09, 2009

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