Question about Cars & Trucks
According to engine-codes.com the code is for a problem with the glow plug circuit on bank one. That circuit would need to be checked.
Posted on Jan 07, 2013
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Posted on Jan 02, 2017
Had similar problems occur on various Chrysler products manufactured since 1986. What I did was remove the computer from the car and then take a Dremel tool with wire brush attachment and lightly buff all the pins of the computer--tops, sides and backs. After this I then take a jewelers round file and insert the tip into each connector pin hole and very lightly file it to remove any corrision. When I reassembling the connector plug to the computer I placed a good size dab of silicon grease on the plug in the center (acts as a seal when seated). This has eliminated the problem on four different vehicles.
Posted on Aug 28, 2008
SOURCE: 96 dakota p1391 error
intermittent loss of ckp or cmp.problem is in the distributor.make sure rotor not loose or distributor hold down bolt loose.camsensor on the distributor.also check to see if crank sensor is loose and out of adjustment.
Posted on Jun 07, 2009
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..
Posted on Nov 17, 2009
SOURCE: 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
Posted on Mar 12, 2012
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