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P0393 High Generic / SAE

P0393: Camshaft Position Sensor B Circuit High — Bank 2

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Do not keep driving

Expect rough running. Recent engine work is worth mentioning.

What this code means

The bank 2 B camshaft signal is above its valid range — a short to supply, an open ground, or an unplugged sensor.

Likely causes

Start here

Symptoms

Components involved

Information, not instruction

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Have anything you intend to act on checked by a trained person against the manufacturer's own procedure for your vehicle. Nothing here replaces that procedure.

Community experience

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What makes one worth reading:

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  • What actually fixed it — or that nothing did, which is worth knowing too.

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