Question about 1996 Jeep Grand Cherokee

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Carnot start car not start cod P1391

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This is an intermittent error caused by the lack of signal occasionally from either the cam or the crank sensor. I would remove and clean both. Check the wiring connections both to the sensors and back to the ECU. Sometimes a bit of dirt or corrosion can interrupt things a little bit so a good clean and brush up usually does the trick. Unplugging and plugging connectors a few times helps make fresh connection. If in doubt replace both.

Posted on Jul 14, 2010

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98 dodge avenger p1391 code, had no start first with no code and replaced dist..didnt fix it..then replace crank sensor and that worked..ben running fine for a year..now all of sudden runs crappy and...


Check connections to crank sensor, then reset your comp by disconnecting your battery cables and holding them together. Make sure to have the code cleared as well.

P1391 (M) Intermittent Loss of CMP or CKP Loss of the Cam Position Sensor or Crank Position sensor has occurred.

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P1391


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What do code p1391 mean


P1391 means intermittent loss of CKP and CMP , these sensor are monitor when the engine cranking,or running,These can come from a damage flex plate for the cranksensor or damage tone wheel for the camsensor,to a failing cranksensor ,failing camshaft sensor, to even the harness intermittent connnection

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Getting a P1391 error code on my 01 Caravan, Changed PCM Sensors, wires, plugs, EGR, Whats Next? Please


P1391 Glow Plug Circuit Low Input (Bank #1)
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    Both DTCs P1391 and P1393 together will set when the monitor indicates that all eight glow plugs are not being powered. An open in all glow plug circuits, the glow plug relay, glow plugs, fusible links or all three monitoring circuits could be the possible causes.
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What are these codes that appears on my engine check machines? p1391,p1297,p0108,p1492


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My PT Cruiser (2002) runs for 5 min., then stalls....5min. later it starts then quits again. P1391 code comes up.


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Code p1391


P1391: Loss of the camshaft position sensor or crankshaft position
sensor has occurred. This can cause the car to start hard or not start at all. Replace both of these sensor should fix the problem.

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P1391 c0de 2002 dodge ram van no start


Code P1391 Loss of crank or cam sensors,P0340 No cam signal at the pcm. I would replace the crank sensor first. Your cam sensor is part of the dist. on 5.2/5.9 engines.
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2000 Ford Excursion Diesel has check engine light of P1391


glow plugs preheat the fuel to help the engine start.....when its hot outside its not that bad...the colder it gets the harder it will be to start with bad glowplugs..

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