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P2408 Severity
Once the vehicle's onboard system no longer detects the issue, most codes will disappear on their own. If your vehicle still has this code, however, it should be properly diagnosed to avoid a more serious problem.
For a proper diagnosis, RepairPal Certified shops have the equipment, tools, and expertise.
Moderate severity codes might not threaten the vehicle's safety or functionality immediately, but you should still get it diagnosed within a reasonable time frame to keep your car running well.
The Fuel Cap Sensor tells the engine computer if the fuel cap damaged or not seated properly. If the sensor sends back an implausible signal, code P2408 will be stored.
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OBD-II Code Powertrain Control Module (PCM) failure is defined as a Fuel Cap Sensor/Switch Circuit
The Fuel Cap Sensor tells the engine computer if the fuel cap damaged or not seated properly. If the sensor sends back an implausible signal, code P2408 will be stored.