P0340

Camshaft Position Sensor Circuit Malfunction

Severity: Medium Ignition System Generic OBD-II Code Est. Repair: $100 - $280

Schedule diagnosis soon. Continued driving may worsen the issue.

What Does P0340 Mean?

Problem in CMP sensor circuit. Affects sequential injection and timing.

Common Symptoms

CEL
Hard start
Rough running
Reduced power

Possible Causes

Failed CMP
Wiring
Reluctor damage
Timing problem
ECM

How to Fix P0340 – Repair Guide

Inspect connector and wiring
Test sensor
Check for oil contamination
Replace if failed
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Disclaimer: Information is for educational reference only and does not replace professional diagnosis. Actual causes and costs vary by vehicle make, model, year and condition. Always verify with a qualified technician.