I have a 96 k1500 chevy truck and have 4 codes that pop up on the check engine light randomly. Codes are ckp A signal intermitent, cmp out of range, idle contol rpm to high, O2 bank 1 sensor 1 insuficent switching. All in thay order. When light comes on runs missfiring bad until check engine light turns off. Any suggestions.

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

What engine ? Chevy K1500 ?
DTC P1345 Crankshaft Position (CKP)-Camshaft Position (CMP) Correlation
This diagnostic trouble code (DTC) monitors the crankshaft position (CKP) and the camshaft position (CMP) signals to determine if they are synchronized. If both signals are not observed by the control module within a narrow time window, the vehicle control module (VCM) will determine that an error has occurred.
Diagnostic Aids
Check the following items:
• A loose CMP sensor causing a variance in the sensor signal
• Excessive free play in the timing chain and gear assembly
• Incorrectly installed distributor - 1 tooth off in either advance or retard positions
• A loose distributor rotor on the distributor shaft
• A loose or missing distributor hold down bolt
An intermittent may be caused by any of the following conditions:
• A poor connection
• Rubbed through wire insulation
• A broken wire inside the insulation
Thoroughly check any circuitry that is suspected of causing the intermittent complaint. Refer to Intermittents and Poor Connections Diagnosis in Wiring Systems.
If a repair is necessary, refer to Wiring Repairs or Connector Repairs in Wiring Systems.

DTC P0016: Crankshaft Position (CKP) - Intake Camshaft Position (CMP) Correlation Bank 1

DTC P0017: Crankshaft Position (CKP) - Exhaust Camshaft Position (CMP) Correlation Bank 1
A camshaft actuator stuck in the full actuation position may cause the engine to crank but not start.
The camshaft position (CMP) actuator system is an electro-hydraulic operated device used for a variety of engine performance and operational enhancements. These enhancements include lower emission output through exhaust gas dilution of the intake charge in the combustion chamber, a broader engine torque range, and improved fuel economy. The CMP actuator system accomplishes this by changing the angle or timing of the camshaft relative to the crankshaft position. The CMP actuator simply allows earlier or later intake and exhaust valve opening during the four stroke engine cycle. The CMP actuator cannot vary the duration of valve opening, or the valve lift.
During engine OFF, engine idling conditions, and engine shutdown, the camshaft actuator is held in the park position. Internal to the CMP actuator assembly is a return spring and a locking pin. During non-phasing modes of the camshaft, the return spring rotates the camshaft back to the park position, and the locking pin retains the CMP actuator sprocket to the camshaft. The park position for the CMP actuator and camshaft is 8.5 degrees before top dead center (BTDC), which is equal to 17 crankshaft degrees BTDC. The engine control module (ECM) can only command the CMP actuator to retard the valve timing from the park position, or advance the valve timing back to the park position. The total range of valve timing authority is approximately 20 degrees of camshaft rotation, which is equal to 40 degrees of crankshaft rotation.
Problems with this will cause the PCM to disable traction control and Stabilitrac .How many miles on your vehicle ?
Chevy Colorado P0017 Case Study Part 1 GM is a GM , Chevy , GMC , Buick , Cadillac etc.....

DTC P0017: Crankshaft Position (CKP) - Exhaust Camshaft Position (CMP) Correlation Bank 1
Which engine does yours have 3.4 or 2.8 , 3.0 , 3.2 , or 3.6 L Chevy Colorado P0017 Case Study Part 1

Follow the link for info on this OBD2 fault code. https://www.obd-codes.com/p0335

Definition of Diagnostic Trouble Code P1345 Audi: Ignition Coil Power Output Stage 3 Short to Ground BMW: Misfire Cylinder 2 with Fuel Cut-Off Buick: Crankshaft Position (CKP)-Camshaft Position (CMP) Correlation Cadillac: Crankshaft Position (CKP)-Camshaft Position (CMP) Correlation Chevrolet: Crankshaft Position (CKP)-Camshaft Position (CMP) Correlation Ford: Cylinder Discrimination Signal (Signal From Camshaft Position Sensor) GMC: Crankshaft Position (CKP)-Camshaft Position (CMP) Correlation Isuzu: Crankshaft Position - Camshaft Position Correlation Kia: No SGC Signal (1.6L) Lexus: Variable Valve Timing / CMP Sensor Range / Performance Lincoln: Cylinder Discrimination Signal (Signal From Camshaft Position Sensor) Mazda: Cylinder Discrimination Signal (from CMP sensor) Mercury: Cylinder Discrimination Signal (Signal From Camshaft Position Sensor) Oldsmobile: Crankshaft Position (CKP)-Camshaft Position (CMP) Correlation Pontiac: Crankshaft Position (CKP)-Camshaft Position (CMP) Correlation Saturn: Crankshaft Position (CKP)-Camshaft Position (CMP) Correlation Toyota: Variable Valve Timing / CMP Sensor Range / Performance Volkswagen: Ignition Coil Power Output Stage 3 Short to Ground

Trouble Code: P0344

Camshaft Position Sensor Circuit Intermittent

Possible Causes:


.Wiring harness fault.5v supply circuit open or shorted to ground.Tone wheel/pulse ring is damaged or corroded.CMP Sensor has failed.CMP Sensor signal circuit is open, shorted to ground or battery. voltage or 5v supply.CMP Sensor ground circuit is open.PCM has failed.Trouble Code: P0016

Crankshaft/Camshaft Timing Misalignment

Possible Causes:


.Base engine problem (i.e., the camshaft timing is not correct).Intermittent condition.CKP or CMP Sensor signal is erratic (check with lab scope).Tone wheel or pulse wheel is damaged or contains debris.CKP or CMP Sensor, harness or connector has failed.PCM has failed.Trouble Code: P0061

Engine Temperature Control Level 2 RPM Performance

Possible Causes:


PCM need to be reprogrammed.PCM has failed.

The crankshaft position (CKP) system variation learn feature is used to calculate reference period errors caused by slight tolerance variations in the crankshaft, and the CKP sensors. The calculated error allows the powertrain control module (PCM) to accurately compensate for reference period variations. This enhances the ability of the PCM to detect misfire events over a wider range of engine speed and load.

The code P1336 is for a Crankshaft (CKP) and/or Camshaft (CMP) position sensor input signal to PCM concert. It is triggered if the input signal to the PCM for either of these sensors is erratic. Per the factory service manual, this can be due to:
- a damaged PCM
- damaged CKP sensor
- damaged CMP sensor
- base engine
- harness concerns.

The service manual suggests checking the following items:
- harness routings,
- alterations,
- improper shielding,
- or electrical interference from other improperly functioning systems.

To properly check the operation of the CMP and CKP, you'll really need an oscilloscope. The code is probably being triggered due to a faulty sensor or connection and not something that just needs to be reset.

Step / Action / Yes / No

1. Did you perform the Diagnostic System Check-Engine Controls?
Yes: Go to Step 2
No: Go to Diagnostic System Check - Engine Controls

2. Preform the CKP system variation learn procedure. Refer to CKP System Variation Learn Procedure. Did you complete the action?
Yes: Go to Step 3
No: Go to Diagnostic Aids

3. Clear the DTCs with a scan tool.
Turn OFF the ignition.
Start the engine.
Operate the vehicle within the Conditions for Running the DTC as specified in the supporting text.
Does the DTC run and pass?
Yes: Go to Step 4
No: Go to Step 2

4. With a scan tool observe the stored information, Capture Info.
Does the DTC run and pass?
Yes: Go to Diagnostic Trouble Code (DTC) List
No: System OK


Diagnostic Aids:
The CKP system variation values are not stored in the PCM memory after a learn procedure has been performed. If the actual CKP variation is not within the CKP system variation compensating values stored in the PCM, DTC P0300 may set.

The CKP system variation learn procedure is also required when the following service procedures have been performed, regardless of whether DTC P1336 is set.
An engine replacement
A PCM replacement
A harmonic balancer replacement
A crankshaft replacement
Any engine repairs which disturb the CKP sensor relationship

If the CKP system variation learn procedure cannot be performed successfully, check for the following conditions and correct as necessary:
A damaged reluctor wheel
Excessive crankshaft runout
A damaged crankshaft
Interference in the signal circuit of the CKP sensor
A coolant temperature that is not within the Conditions For Running the DTC
The ignition switch is in the ON position until the battery is drained
A PCM power disconnect with the ignition ON may erase the stored value and set the DTC P1336

Hope helps.

gm has a problem with this from way back. double check your spark plugs and if they are not ac delcos, change them. ive seen this time and time again swearing, myself, that there is no way that the plugs would cause this issue. it always comes up with random misfire and usually another 1 or 2 codes misfire codes. put in ac delco, no more codes. let me know

Tests/Procedures: 1. Check the Crankshaft Position Sensor (CKP) and Camshaft Position Sensor (CMP) signals with a lab scope.

2. Check the wiring and connections at the CKP and CMP sensor. Potential Causes: Camshaft Position Sensor (CMP)
Crankshaft Position Sensor (CKP)
Powertrain Control Module (PCM)
Wiring