P0121: Throttle Position Sensor/Switch A Circuit Range/Performance Problem
P0133: O2 Sensor Circuit Slow Response - Bank 1 Sensor 1
P0135: O2 Sensor Heater Circuit Malfunction (Bank 1, Sensor 1)
P0138: O2 Sensor Circuit High Voltage (Bank 1, Sensor 2)
P0150: O2 Sensor Circuit Malfunction (Bank 2, Sensor 1)
P0154: O2 Sensor Circuit No Activity Detected (Bank 2, Sensor 1)
P0171: System Too Lean (Bank 1)
P0174: System Too Lean (Bank 2)
P0193: Fuel Rail Pressure Sensor Circuit High Input
P0201: Injector Circuit Malfunction - Cylinder 1
P0202: Injector Circuit Malfunction - Cylinder 2
P0203: Injector Circuit Malfunction - Cylinder 3
P0204: Injector Circuit Malfunction - Cylinder 4
P0205: Injector Circuit Malfunction - Cylinder 5
P0206: Injector Circuit Malfunction - Cylinder 6
P0300: Random/Multiple Cylinder Misfire Detected
P0301: Cylinder 1 Misfire Detected
P0302: Cylinder 2 Misfire Detected
P0303: Cylinder 3 Misfire Detected
P0304: Cylinder 4 Misfire Detected
P0305: Cylinder 5 Misfire Detected
P0306: Cylinder 6 Misfire Detected
P0401: EGR System Insufficient Flow Detected
P0404: Exhaust Gas Recirculation Control Circuit Range/Performance Problem
P0420: Catalyst System Efficiency Below Threshold (Bank 1)
P0422: Main Catalyst Below Threshold (Bank 1)
P0440: Evaporative Emission Control System Malfunction
P0441: Evaporative Emission Control System Purge Control Valve Circuit Malfunction
P0442: Evaporative Emission Control System Leak Detected (Small Leak)
P0446: Evaporative Emission Control System Vent Control Circuit Malfunction
P0455: Evaporative Emission Control System Leak Detected (Gross Leak)
P0456: Evaporative Emission Control System Small Leak Detected
P0457: Evaporative Emission Control System Pressure Sensor Circuit Malfunction
P0480: Cooling Fan 1 Control Circuit Malfunction
P0481: Cooling Fan 2 Control Circuit Malfunction
P0507: Idle Air Control System RPM Higher Than Expected
P0508: Idle Air Control System RPM Lower Than Expected
P0513: Immobilizer Key Transponder Coil Circuit Malfunction
P0520: Engine Oil Pressure Sensor/Switch Circuit Malfunction
P0540: Intake Air Heater Control Circuit Malfunction
P0543: Air Conditioner Refrigerant Pressure Sensor Circuit Malfunction
P0545: Exhaust Gas Temperature Sensor Circuit Malfunction
P0562: System Voltage High
P0563: System Voltage Low
P0607: Powertrain Control Module Processor Input Performance
P0643: Camshaft Position Sensor Input Malfunction
P0700: Transmission Control System Malfunction
P0720: Output Speed Sensor Circuit Malfunction
P0757: Shift Solenoid A Malfunction
P0763: Shift Solenoid B Malfunction
P0783: 3-4 Shift Malfunction
P0894: Transmission Component Slipping
These are just a few examples of check engine codes that may appear on a 2004 Intrepid. It's important to note that this list is not exhaustive and many other codes may also occur. If your Intrepid's check engine light comes on, it's recommended to have the vehicle diagnosed by a qualified mechanic to determine the cause and appropriate repairs.
