P1391 diagnostic code

The codes tell the issue

920 -921-999 error codes??????

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Jul 14, 2005 - 920 The cluster is not receiving a vehicle speed message from the PCM. 1. Check the PCM software level and reflash if required. 2. Use a DRB ...

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A P0500 code is a diagnostic trouble code (DTC) titled "Vehicle Speed Sensor (VSS) Malfunction." This code is triggered when the vehicle's Powertrain Control Module (PCM) or Engine Control Module (ECM) detects inaccurate speed readings or lack of a signal from the Vehicle Speed Sensor (VSS).

p0500 Code - Vehicle Speed Sensor "A" ' KBB

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Error Code P1391 is defined as CMP or CKP Signal Intermittent Condition. It refers to intermittent conditions in the CMP (camshaft position sensor)

Codes are all over the internet --Google them

OBD P1391

There is a code table here: Diagnostic Trouble Code Table ,hope help.

Check the diagnostic fault code chart and see what is that code for example fuel immobilized SRS ABS ext

DIAGNOSTIC TROUBLE CODE (DTC) P1391: "INTERMITTENT LOSS OF CMP OR CKP"
This DTC is monitored with the engine cranking or running. This DTC will be stored in the Powertrain Control Module (PCM) when the PCM FAILURE COUNTER reaches 96 failures for 2 consecutive trips.
Posiible causes are: Craknkshaft Position (CKP) sensor improperly installed, defective CKP sensor, defective distributor, defective Camshaft Position (CMP) sensor, defective PCM, defective or broken flywheel, defective connectors or defective wiring.
Proper diagnosis is recommended before replacing ANY parts.

Hello
Here are the meanings of these codes.
P1391 FORD - Glow Plug Circuit Low Input Bank #1
P1393 FORD - Glow Plug Circuit Low Input Bank #2
I think you most likely have a burnt out Glow pug controller. Whenever this controller is replaced all glow plugs should be tested for proper function.

check engine light and code P1391 crank or cam position sensor

The above can cause rough idle on the Dodge Ram 1500 5.2L V8 Engine.

Can try to replace the sensor, but verify that the wires are ok first.

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.
Hope that helps.

You have several RAM sub-models in here:
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B2500 RAM Van
B3500 RAM Van
RAM 1500 1/2 ton 2WD
RAM 1500 1/2 ton 4WD
RAM 2500 3/4 ton 2WD
RAM 2500 3/4 ton 4WD
RAM 3500 1 ton 2WD
RAM 3500 1 ton 4WD

Chrysler Full-Size Trucks 1989-1996 Repair Guide
To avoid confusion, remove and tag the wires one at a time for replacement.





Fig. 1: 2.5L 4-cylinder Engine. Engine Firing Order: 1-3-4-2. Distributor Rotation: Clockwise




Fig. 2: 3.9L V6 Engine. Engine Firing Order: 1-6-5-4-3-2. Distributor Rotation: Clockwise




Fig. 3: 5.2L and 5.9L V8 Engines. Engine Firing Order: 1-8-4-3-6-5-7-2. Distributor Rotation: Clockwise




Fig. 4: 8.0L V10 Engine. Engine Firing Order: 1-10-9-4-3-6-5-8-7-2. Distributorless Ignition


Hope helped with this (remember rated this help) Good luck.