Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
The car's computer is having trouble reading the position of a part called the camshaft on one side of the engine.
The engine control module (ECM) is detecting an issue with the signal from the camshaft position sensor on Bank 2, which is affecting the timing of the engine.
The camshaft position sensor monitors the position of the camshaft and sends this information to the ECM. If the signal from the sensor is out of the expected range or not performing as expected on Bank 2, the ECM will set the P0346 code.
• Check Engine Light is on
• Engine may run rough
• Poor fuel economy
• Faulty camshaft position sensor
• Wiring issues or poor connection
• Faulty ECM
Camshaft: A shaft in the engine that controls the opening and closing of the intake and exhaust valves.
ECM: Engine Control Module, the computer that manages engine performance.
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connectors for damage.
• Test the camshaft position sensor with a multimeter.
• Replace the camshaft position sensor.
• Repair or replace damaged wiring or connectors.
• Reprogram or replace the ECM if necessary.
• OBD-II scanner
• Multimeter
• Socket set
$150 - $400
Moderate
• Toyota Camry
• Ford F-150
• Honda Accord
• Regular maintenance checks
• Ensure timely replacement of sensors
• Keep wiring and connectors clean and secure
Sensor Issue
• Do not ignore the Check Engine Light.
• Seek professional diagnosis if unsure.
• Avoid driving long distances until repaired.
Check if the vehicle's powertrain warranty covers sensor replacements.
This code has been commonly reported in vehicles with aging sensors or wiring issues.
Moderate – Address the issue soon to prevent potential engine performance problems.
Driving with this code active may lead to increased emissions and reduced engine performance.
• Engine at operating temperature
• Vehicle stationary
The camshaft position sensor is typically located near the top of the engine, on the cylinder head of Bank 2.
Q: Can I drive my car with a P0346 code?
A: It's best to have it checked soon, as it can affect engine performance.
Q: How do I know if my camshaft position sensor is bad?
A: Symptoms include a rough-running engine, poor fuel economy, and the Check Engine Light being on.
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