Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means that the car's computer is having trouble getting a good signal from a sensor that helps it know when to open and close the engine's valves. It's like trying to watch a movie with a bad internet connection.
The P0347 code indicates that the signal from the camshaft position sensor A on bank 2 is lower than expected.
The camshaft position sensor monitors the position or rotational speed of the camshaft in the engine. This data is used by the engine control module (ECM) to control fuel injection and ignition timing. A 'circuit low' condition means the sensor signal is below the expected voltage range, which can affect engine performance.
• Check Engine Light is on
• Engine may run rough or misfire
• Poor fuel economy
• Difficulty starting the engine
• Faulty camshaft position sensor
• Wiring issues in the sensor circuit
• Connector problems or corrosion
• Faulty ECM
• Timing chain or belt issues
Camshaft: A shaft in the engine that controls the opening and closing of the valves.
ECM: Engine Control Module, the computer that controls engine operations.
• Use an OBD-II scanner to verify the code
• Inspect the wiring and connectors for damage or corrosion
• Test the camshaft position sensor with a multimeter
• Check the timing chain or belt for proper alignment
• Test the ECM if other components are functioning correctly
• Replace the camshaft position sensor
• Repair or replace damaged wiring or connectors
• Clean corroded connectors
• Realign or replace the timing chain or belt
• Replace the ECM if necessary
• OBD-II scanner
• Multimeter
• Socket set
• Wrench set
$150 - $400
Moderate
• Ford F-150
• Chevrolet Silverado
• Toyota Camry
• Regularly inspect and maintain engine components
• Ensure timely replacement of timing belts or chains
• Keep electrical connections clean and secure
Sensor Issue
• Do not ignore the Check Engine Light
• Have the vehicle inspected by a professional if unsure
• Regularly maintain the vehicle to prevent sensor issues
Check with the vehicle manufacturer for warranty coverage on engine components and sensors.
The P0347 code has been common in vehicles with aging camshaft sensors or those with timing chain issues.
Moderate – While the vehicle may still operate, it can lead to poor performance and should be addressed soon.
Driving with a malfunctioning camshaft position sensor can lead to increased emissions and potential engine damage.
• Engine at operating temperature
• Vehicle in a safe, stationary position
The camshaft position sensor is typically located near the top of the engine, on the cylinder head, or near the camshaft itself.
Q: What happens if I ignore this code?
A: Ignoring this code can lead to poor engine performance and potential damage over time.
Q: Can I drive my car with a P0347 code?
A: While the car may still run, it's not recommended to drive for long distances as it can lead to further issues.
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Universal · Digital multimeter
A solid entry-level multimeter for voltage, continuity, resistance, and basic electrical troubleshooting.
Helpful for checking voltage drops, grounds, and basic circuit health when modules are not communicating.
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Universal · Wire connectors and repair kit
Useful when diagnosis points toward damaged wiring, corroded terminals, or connector repairs.
Useful if diagnosis points toward damaged connectors, wiring, or terminal repairs.
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Fitment Required · Vehicle-fitment part
Commonly relevant for misfire, ignition-efficiency, and some drivability-related repairs.
Misfire and ignition-related faults commonly involve spark plugs as part of the repair path.
Check the correct plug type, gap, and engine application for your vehicle.
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Fitment Required · Vehicle-fitment part
Relevant when the fault points toward ignition-coil performance or cylinder-specific ignition issues.
Some ignition faults involve coil performance or cylinder-specific coil problems.
Match the coil to your engine and confirm the failed component before ordering.
View options on AmazonThese parts may be related to this fault category, but a code by itself does not confirm exact fitment or guarantee that replacing a part will solve the problem.