P0343
Camshaft Position Sensor Circuit High Input
This code indicates camshaft position sensor circuit high input. It relates to the ignition system or misfire and may affect performance, emissions, or drivability depending on the exact failure.
Camshaft Position Sensor Circuit High Input
Common causes
- medium
Faulty spark plugs or ignition coils
Worn or failed ignition components are a common source of misfire-related codes.
Typical part cost: $100-400
- medium
Fuel delivery issue
A clogged injector or weak fuel pump can cause uneven combustion.
Typical part cost: $100-400
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First things to check
- 1Confirm the code with a scan tool and check for additional related codes.
- 2Inspect the relevant sensors, wiring, and connectors for damage or corrosion.
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Related codes
See related trouble codes
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Frequently asked questions
What does P0343 mean?
P0343 means "Camshaft Position Sensor Circuit High Input". It is a generic OBD-II code that points to a fault in the ignition system or misfire.
Can I keep driving with this code?
This code points to a problem that can cause damage or affect safety. Avoid driving and have the vehicle diagnosed promptly. Use the Wrenchify app for a full diagnosis specific to your vehicle.
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