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P0343

Camshaft Position Sensor — Signal Too High (Bank 1)

High — fix right awayDo not drive

Severity: Fix right away. Driving risks expensive damage or a breakdown.

What P0343 means

The camshaft position sensor on bank 1 is sending a stronger signal than expected, which usually means a wiring fault or a failing sensor.

Common causes

How to fix it

Check the wiring for shorts and replace the sensor if the reading stays high.

Can I drive with P0343?

The engine may run rough or stall. Get it checked soon.

Related codes

Questions, answered

Is it safe to drive with code P0343?

Avoid driving until it is checked — towing is the safer choice. The engine may run rough or stall. Get it checked soon.

What causes code P0343?

The most common causes are: Failed camshaft position sensor; Shorted wiring; Damaged connector; Faulty engine computer. A scan tool and a visual check of the parts above is where a technician starts.

How do I fix code P0343?

Check the wiring for shorts and replace the sensor if the reading stays high.

Not repair advice. This page gives general information about code P0343 only. Cars differ by make, model and year — confirm the fault with a scan tool and have the repair done by a qualified technician.

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