Possible Causes

NOTE: The listed causes may not be a complete list of all potential problems and there may be other causes.

• Faulty camshaft position sensor
• Camshaft position sensor harness is open or shorted
• Poor electrical connection in camshaft position sensor circuit

Description

The camshaft position sensor is an electronic device used in an engine to record the rate at which the camshaft spins. This information is used by the Engine Control Module (ECM) to control ignition and fuel injection. The camshaft position sensor senses the retraction of camshaft (intake) to identify a particular cylinder. The camshaft position sensor senses the piston position. The sensor system consists of a rotating part, typically a disc, as well as a static part, the sensor itself.
When the engine is rotating, the high and low parts of the teeth cause the gap with the sensor to change. The changing gap causes the magnetic field near the sensor to change. The change in the magnetic field causes the sensor voltage to change.
When the crankshaft position sensor (POS) system becomes inoperative, the camshaft position sensor provides various commands for engine parts instead, using the timing of the cylinder identification signals.

How to Repair

Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

Detected

The camshaft position sensor signal is not detected by the Engine Control Module (ECM) during the first few seconds of engine cranking.

Possible Symptoms

• Engine Light ON (or Service Engine Soon Warning Light)
• Lack/Loss of Power
• Engine Stall

Possible Causes

NOTE: The listed causes may not be a complete list of all potential problems and there may be other causes.

• Faulty Camshaft Position Sensor (CMP)
• Camshaft Position Sensor (CMP) harness is open or shorted
• Poor electrical connection in the Camshaft Position Sensor (CMP) circuit

Description

The Camshaft Position Sensor signal is the generic description for the Mercedes-Benz P1340 code, but the manufacturer may have a different description for your specific model and vehicle year. Currently, we have no other information about the OBDII P1340 Mercedes-Benz code.

How to Repair

Check the “Possible Causes” listed above. Visually inspect the wiring harness and related connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

Possible Symptoms

• Engine Light On (or Service Engine Soon Warning Light)

Possible Causes

NOTE: The listed causes may not be a complete list of all potential issues and there may be other causes.

• Faulty spark plug
• Faulty ignition coil
• Intake vacuum leak
• Faulty camshaft position sensor
• Ignition coil harness is open or shorted
• Poor electrical connection in ignition coil circuit

Description

Multiple cylinder misfire during start is the generic description for MINI code P1340, but the manufacturer may have a different description for your vehicle model and year. Currently, we have no other information about MINI OBDII code P1340.

How to Repair

Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

Possible Symptoms

• Engine light on (or service engine soon warning light)

Possible Causes

NOTE: The listed causes may not be a complete list of all potential problems and there may be other causes.

• Faulty camshaft position sensor
• Camshaft position sensor harness is open or shorted
• Poor electrical connection in camshaft position sensor circuit
• Faulty starter
• Starting system circuit
• Dead (weak) battery

What does this mean?

Technical Notes

Description

The camshaft position sensor is an electronic device used in an engine to record the rate at which the camshaft spins. This information is used by the Engine Control Module (ECM) to control ignition and fuel injection. The camshaft position sensor senses the retraction of intake camshaft to identify a particular cylinder. The camshaft position sensor senses the piston position. The sensor system consists of a rotating part, typically a disc, as well as a static part, the actual sensor.
When the engine is running, the high and low parts of the teeth cause the gap with the sensor to change. The changing gap causes an alteration in the magnetic field near the sensor. The alteration of the magnetic field causes the voltage from the sensor to change.
When the Crankshaft Position Sensor (POS) system becomes inoperative, the camshaft position sensor provides various controls of engine parts instead, using the timing of cylinder identification signals.

How to Fix

Check the “Possible Causes” listed above. Visually inspect the related wire harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

Possible Symptoms

• Engine Light ON (or Service Engine Soon Warning Light)
• Lack/loss of power
• Engine stalling

Possible Causes

NOTE: The listed causes may not be a complete list of all potential issues and there may be other causes.

• Faulty camshaft position sensor
• Faulty crankshaft position sensor
• Camshaft position sensor harness is open or shorted
• Poor electrical connection in the camshaft position sensor circuit
• Crankshaft position sensor harness is open or shorted
• Poor electrical connection in the crankshaft position sensor circuit

Description

CKP/CMP sensor signals out of sequence is the generic description for Volkswagen code P1340, but the manufacturer may have a different description for your vehicle model and year. Currently, we have no other information about Volkswagen OBDII code P1340.

How to Repair

Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

Possible Symptoms

• Engine light on (or service engine soon warning light)

Possible Causes

NOTE: The listed causes may not be a complete list of all potential problems and there may be other causes.

• Faulty spark plug
• Faulty ignition coil
• Intake vacuum leak
• Faulty camshaft position sensor
• Ignition coil harness is open or shorted
• Poor electrical connection in ignition coil circuit

Description

Under CARB/OBD regulations, the Engine Control Module (ECM) must determine if a misfire is occurring and also identify the specific cylinder(s) and the severity of the misfire event and whether it is an emissions problem or damaging to the catalyst. To accomplish these tasks, the control module monitors the crankshaft for acceleration losses during the firing segments of each cylinder according to the firing order.
The misfire/engine roughness calculation is derived from differences in the period duration (T) of individual gear segments. Each segment period consists of an angular range of 120° crankshaft angle that begins 78° before top dead center (TDC).
If the expected period duration is greater than the allowed value, a misfire fault for the affected cylinder is stored in the ECM fault memory. Depending on the measured misfire rate level, the control unit will illuminate the Service Engine Soon light, may cut fuel to the particular cylinder, and may switch lambda operation to open loop. All misfire faults are weighted to determine whether misfires are emissions-related or damaging the catalyst.

How to Repair

Check the “Possible Causes” listed above. Visually inspect the wiring harness and related connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

Possible Symptoms

• Engine Light On (or Service Engine Soon Warning Light)

Possible Causes

NOTE: The listed causes may not be a complete list of all potential problems and there may be other causes.

• Faulty ignition coil
• Ignition coil harness is open or shorted
• Poor electrical connection in ignition coil circuit

Description

Ignition Coil Output Stage 1 Short To Ground is the generic description for Audi P1341 code, but the manufacturer may have a different description for your specific vehicle model and year. Currently, we have no further information about the Audi P1341 OBDII code.

How to Repair

Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

Possible Symptoms

• Engine Light On (or Service Engine Soon Warning Light)

Possible Causes

NOTE: The listed causes may not be a complete list of all potential problems and there may be other causes.

• Faulty spark plug
• Faulty ignition coil
• Intake vacuum leak
• Faulty camshaft position sensor
• Ignition coil harness is open or shorted
• Poor electrical connection in ignition coil circuit

Description

Under CARB/OBD regulations, the Engine Control Module (ECM) must determine if a misfire is occurring and also identify the specific cylinder(s) and severity of the misfire event and whether it is an emissions problem or damaging to the catalyst. To accomplish these tasks, the control module monitors the crankshaft for acceleration losses during the firing segments of each cylinder according to the firing order.
The misfire/engine roughness calculation is derived from differences in the period duration (T) of individual gear segments. Each segment period consists of an angular range of 120° crankshaft angle that begins 78° before top dead center (TDC).
If the expected period duration is greater than the allowed value, a misfire fault for the affected cylinder is stored in the ECM fault memory. Depending on the measured misfire rate level, the control unit will illuminate the Service Engine Soon light, may cut fuel to the particular cylinder, and may switch lambda operation to open loop. All misfire faults are weighted to determine whether misfires are emissions-related or damaging the catalyst.

How to Repair

Check the “Possible Causes” listed above. Visually inspect the wiring harness and related connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

Possible Symptoms

• Engine Light On (or Service Engine Soon Warning Light)

Possible Causes

NOTE: The listed causes may not be a complete list of all potential issues and there may be other causes.

• Faulty camshaft position sensor
• Camshaft position sensor harness is open or shorted
• Poor electrical connection in camshaft position sensor circuit
• Faulty starter
• Starting system circuit
• Dead (weak) battery

Description

The camshaft position sensor is an electronic device used in an engine to record the speed at which the camshaft rotates. This information is used by the Engine Control Module (ECM) to control ignition and fuel injection. The camshaft position sensor detects the retraction of the camshaft (intake) to identify a specific cylinder. The camshaft position sensor detects the piston position. The sensor system consists of a rotating part, typically a disk, as well as a static part, the sensor itself.
When the engine rotates, the high and low parts of the teeth cause a change in the gap with the sensor. The changing gap results in a modification of the magnetic field near the sensor. The change in the magnetic field causes a variation in the sensor voltage.
When the crankshaft position sensor (POS) system becomes inoperative, the camshaft position sensor instead provides various commands for engine components, using the timing of cylinder identification signals.

How to Repair

Check the “Possible Causes” listed above. Visually inspect the wiring harness and related connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

Possible Symptoms

• Engine light on (or service engine soon warning light)
• Lack/loss of power
• Engine stalling

Possible Causes

NOTE: The listed causes may not be a complete list of all potential problems and there may be other causes.

• Faulty camshaft position sensor
• Camshaft position sensor harness is open or shorted
• Poor electrical connection in the camshaft position sensor circuit

Description

The camshaft position sensor is an electronic device used in an engine to record the rate at which the camshaft spins. This information is used by the Engine Control Module (ECM) to control ignition and fuel injection. The camshaft position sensor senses the retraction of the camshaft (intake) to identify a particular cylinder. The camshaft position sensor detects the piston position. The sensor system consists of a rotating part, typically a disk, as well as a static part, the sensor itself.
When the engine is rotating, the high and low parts of the teeth cause a change in the gap with the sensor. The changing gap causes a change in the magnetic field near the sensor. The change in the magnetic field causes a change in the sensor’s voltage.
When the crankshaft position sensor (POS) system becomes inoperative, the camshaft position sensor provides various commands for engine components instead, using the timing of the cylinder identification signals.

How to Repair

Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

Detected

The camshaft position sensor signal is not detected by the Engine Control Module (ECM) during the first few seconds of engine cranking.

Possible Symptoms

• Engine Light ON (or Service Engine Soon Warning Light)
• Lack/loss of power
• Engine stalling