| From | Message |
Robert
Dodge Dakota
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3/27/2005
12:01:14
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 Subject: Code 1391 how to troubleshoot???
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Message:
I have a troble code of P1391
Camshaft Or Crankshaft Position Sensor Intermittent Loss
How do you troubleshoot this, the truck runs great, although it takes a while to get it started.
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Relf
Dodge Dakota
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3/29/2005
15:23:17
|  RE: Code 1391 how to troubleshoot???
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Message:
What kinda truck do you got? Relf.
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?
Dodge Dakota
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3/30/2005
08:35:27
| RE: Code 1391 how to troubleshoot???
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Message:
Crank sensor is at back of engine , passenger side
just below distributor. On your truck , you probably need to remove inner fender , passenger
side to see, get at it . First inspect the
connector to the computer - possible "dirty"
connection !
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Robert
Dodge Dakota
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3/30/2005
08:43:36
| RE: Code 1391 how to troubleshoot???
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Message:
its a 96 dakota 3.9,
I have taken the crank sensor out and cleaned the pick up and the connector
can the crank sensor be going bad? or is it oneof those things where it either works or doesnt?
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um
Dodge Dakota
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3/30/2005
15:12:31
| RE: Code 1391 how to troubleshoot???
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Message:
the CPS usually works or does not work. when it is an intermitent problem it is due to a short or bad conection in the wiring
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93dak4x4
Dodge Dakota
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3/30/2005
17:31:08
| RE: Code 1391 how to troubleshoot???
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Message:
just replace the sensor and do the crank sensor mod at the same time, that should probably cure the problem and give you a few ponies and a mpg or two
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mikej43
Dodge Dakota
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12/03/2005
22:37:51
| RE: Code 1391 how to troubleshoot???
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Message:
I noticed the previous post mentioned "Replace the Sensor and do the Crank mod at the same time"
What is the Crank mod ? Replacing the sensor I understand. What are the details of the crank mod ?
Thanks for taking the time to respond to my Q.
mj
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Cap
Dodge Dakota
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12/04/2005
22:29:58
| HAve question on Dodge dakota
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Message:
Hello,
we have a 92 dodge dakota.Just replaced tranny.Was runnin great before took old tranny out but since put new one in wont start.So rechecked and there were some wires that forgot to hook up.A 3 way wire that bolts up right beside back of motor and plugs into the wiring harness.What is it for and what does it hook to?The top half of wires are orange green and black and the bottom is all 3 black wires.Could ya please help me in getting this back together so can get truck back on road..
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andrew
Dodge Dakota
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2/23/2009
15:54:37
|  drive shaft
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Message:
what do i do they tell me my drive shaft of my 05 dakota v6 has play i never heard of such a thing like that
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yogibear
Dodge Dakota
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8/24/2009
00:08:58
| RE: Code 1391 how to troubleshoot???
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Message:
what is the crank sensor mod
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well
Dodge Dakota
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8/24/2009
06:10:55
| RE: Code 1391 how to troubleshoot???
IP: Logged
Message:
Remove the crank sensor
Slot the holes,
Slide the crank sensor as far as it will go towards the oil filter.
Results,
Advance in timing
If the motor pings after the mod
Go to 1 range colder on the spark plugs
NGK FR5's recommended
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J and J Auto
GenII
9/01/2009
03:38:35
| RE: Code 1391 how to troubleshoot???
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Message:
cps mod
note position
slot holes with a round file 3/8" remove rubber
gromit from hole and move towards oil filter or
down
use 2 little washers and do not over tighten and
be sure all fileings are off pickup
Play in drive shaft is usualy u-joints unless your
spline is wore but that is very unusual
The cam sensor is under the dist cap once the
cap and rotor is removed it lifts right out all
this does is tell the injectors when to fire
and look there is a square side and a round side
be sure you put it in the right way. plug it in
and your done
when it starts hard stop pull a spark plug
if wet crank sensor
if dry cam sensor
Larry
J&J Auto
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Robbie
Dodge Dakota
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6/24/2011
20:46:49
| RE: Engine Missing and will not idle
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Message:
I have a 2006 dodge dakota slt, the check engine light came on and the engine started to idle bad. I changed plus and wires. I cleaned the IAC valve. I used sea foam in the gas. I used Mopar cleaner thru the throttle body. It is still missing and will not idle. Any suggestions.
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fred b
Dodge Dakota
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12/26/2011
13:55:53
| RE: Code 1391 how to troubleshoot???
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Message:
i have 2001 dakota 3.9, itermit stall when going down the road, pulls a 1391 code replaced both sensors still doing it, what do check next? its worse with a load, like a small trailor.
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Curly
Dodge Dakota
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1/02/2012
10:12:58
| RE: Code 1391 how to troubleshoot???
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Message:
Here this might be of some help..
P1391 - Intermittent loss of camshaft position
sensor or crankshaft position sensor
Rich pointed out that possibilities include a dead
or badly installed camshaft position sensor; valve
timing out of spec; sensor relearning required
with a scan tool; or a damaged tone wheel or pulse
ring. ImperialCrown wrote that the cam position is
used mainly to synchronize fuel injectors, the
crank position is needed to know when to spark. A
good scan tool can usually pick up the problem by
monitoring the sensors; a bad one will sometimes
get “lost.” Timing chain and water pump sensors
can cause the code to be set (if timing marks are
out of range).
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JET
Dodge Dakota
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1/08/2012
23:11:29
| RE: Code 1391 how to troubleshoot???
IP: Logged
Message:
Check the spark path: plugs, wires, dist cap. Etc.
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