1. O2 Sensor Failure: The O2 sensors in the Charger are responsible for monitoring the oxygen content in the exhaust gas and relaying this information to the engine control unit (ECU). If an O2 sensor fails, it can cause the air-fuel mixture to become too rich or too lean, leading to performance issues, increased fuel consumption, and emissions problems. Check for any fault codes related to the O2 sensors using an OBD-II scanner.
2. Fuel Pressure Sensor Issues: The fuel pressure sensor in the Charger monitors the fuel pressure in the fuel system. If the fuel pressure sensor fails or becomes faulty, it can provide incorrect information to the ECU, causing the engine to run poorly or stall. Check the fuel pressure using a fuel pressure gauge and compare it with the specified values in the vehicle's repair manual.
3. Fuel Pump Problems: The fuel pump is responsible for delivering fuel from the fuel tank to the engine. If the fuel pump fails or becomes weak, it can lead to insufficient fuel pressure and cause the engine to run lean, hesitate, or stall. Check the fuel pressure as described above and inspect the fuel pump for any signs of wear, damage, or leaks.
4. Wiring Issues: Check for any damaged, loose, or corroded wiring related to the O2 sensors, fuel pressure sensor, or fuel pump. Faulty wiring can disrupt the communication between these components and the ECU, leading to various issues.
If you suspect any of these problems, it's best to have the vehicle inspected and diagnosed by a qualified mechanic. They can pinpoint the exact issue and recommend the appropriate repairs.
