Jeep Code P1CEA is a diagnostic trouble code indicating a boost side EVAP system performance problem. The Powertrain Control Module (PCM) monitors the Evaporative Emission System operation to identify potential issues, such as system leaks, canister contamination, and fuel tank pressure. If the system malfunctions, the PCM will detect it through tests and store the code P1CEA in the vehicle’s memory. The cause of this code can range from high resistance in the fuel tank pressure sensor circuit to a blockage in the evaporative purge hose. To diagnose and repair the issue, it is important to understand the various components of the system and the related Service Bulletins.
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Causes and Solutions of Jeep Code P1CEA
| Cause | Solution |
|---|---|
| High Resistance in the FTP Sensor 5-Volt Supply Circuit | Check for open or shorted wires in the FTP sensor 5-volt supply circuit. |
| High Resistance in the FTP Sensor Signal Circuit | Inspect the FTP sensor signal circuit for short to ground, short to power, or open. |
| High Resistance in the FTP Sensor Return Circuit | Examine the FTP sensor return circuit for any open or shorted wires. |
| Blockage/Flash at the Ports on the CAC Duct and the Air Cleaner | Clean the ports on the CAC duct and the air cleaner to remove any blockage or flash. |
High Resistance in the FTP Sensor 5-Volt Supply Circuit
The Powertrain Control Module (PCM) monitors the Evaporative Emission System’s operation. If it finds high resistance in the Fuel Tank Pressure (FTP) Sensor 5-Volt Supply Circuit, it will store the code P1CEA in the vehicle’s memory. Inspecting the FTP sensor 5-volt supply circuit for any open or shorted wires is important, as this can cause the issue.
High Resistance in the FTP Sensor Signal Circuit
The PCM will also identify high resistance in the FTP Sensor Signal Circuit and store the code P1CEA in the vehicle’s memory. If this is the cause of the issue, it is essential to inspect the FTP sensor signal circuit for short to ground, short to power, or open.
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High Resistance in the FTP Sensor Return Circuit
The PCM will detect high resistance in the FTP Sensor Return Circuit and store the code P1CEA in the vehicle’s memory. To repair the issue, checking for any open or shorted wires in the FTP Sensor Return Circuit is important.
Blockage/Flash at the Ports on the CAC Duct and the Air Cleaner
The PCM will also detect a blockage or flash at the ports on the CAC Duct and the Air Cleaner and store the code P1CEA in the vehicle’s memory. To fix the issue, it is necessary to clean the ports on the CAC duct and the air cleaner to remove any blockage or flash.
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Conclusion
Jeep Code P1CEA is an important diagnostic trouble code that needs to be addressed immediately. The cause of this code can range from high resistance in the fuel tank pressure sensor circuit to a blockage in the evaporative purge hose. To diagnose and repair the issue, it is important to understand the various components of the system and the related Service Bulletins. With the right knowledge and experience, drivers can easily identify and solve the Jeep Code P1CEA, ensuring their Jeep runs efficiently and safely.