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P0340

Camshaft Position Sensor Circuit Malfunction

Fix Cost
$100 - $500
Est. parts cost
Labor Cost
$100 - $300
Mechanic rates
Difficulty
4/5
Hard
2-4 hours
DIY Fix?
❌ No
See mechanic

📖 What Does P0340 Mean?

The camshaft position sensor is not providing a proper signal to the engine control module, preventing accurate timing control.

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Symptoms

Hard starting or no start, rough idle, engine stalling, poor performance, check engine light, engine may run but poorly.

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Common Causes

Faulty camshaft position sensor, damaged wiring or connectors, timing chain/belt problems, sensor contamination, ECM issues.

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Possible Solutions

Replace camshaft position sensor, inspect and repair wiring, check timing chain/belt condition, clean sensor area, test ECM functionality.

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Recommended Parts & Tools

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Frequently Asked Questions about P0340

How serious is P0340?

This code has a high severity level. You should address this issue immediately to prevent engine damage.

Can I drive with P0340?

Driving with this code is not recommended as it may cause further engine damage.

How much does it cost to fix P0340?

Repair costs vary depending on the root cause, but typically range from $200-500 including parts and labor.

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Related Diagnostic Codes

Other codes that may appear with P0340

💡 Why These Codes Are Related:

  • Similar Issues: Same root cause or component failure
  • Related Problems: Often occur together due to system interactions
  • Sequential Codes: Progressive failure stages or multiple sensors
  • Same System: Components within the same automotive system