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Engine Control System - Self-Diagnostics Expand All (for easy ctrl-f) Collapse All Introduction Self-Diagnostic System Programming Drive Cycles Summary Diagnostic Trouble Code Definitions Component Locations Connector Identification System Tests Diagnostic Tests Notes DTC P0100: MAF Sensor Circuit DTC P0101: MAF Sensor Performance DTC P0110: IAT Sensor Circuit DTC P0115: ECT Sensor Circuit DTC P0116: ECT Sensor Circuit Performance DTC P0120: TP Sensor Circuit DTC P0121: TP Sensor Performance DTC P0125: ECT Excessive Time To Enter Closed Loop DTC P0128: ECT Below Thermostat Regulating Temperature DTC P0130: Ho2S 1 Circuit DTC P0133: Ho2S 1 Slow Response DTC P0135 Or P0141: Ho2S 1 Or 2 Heater Performance DTC P0136: Ho2S 2 Circuit DTC P0138: Ho2S Circuit - High Voltage DTC P0140: Ho2S 2 Circuit Insufficient Activity (Bank 1) DTC P0141: Ho2S 2 Heater Performance (Bank 1) DTC P0171: Fuel Trim System Lean DTC P0172: Fuel Trim System Rich DTC P0300: Engine Misfire Detected DTC P0301, P0302, P0303, P0304: Cylinder Specific Misfire Detected DTC P0325: Knock Sensor Module Circuit DTC P0335: CKP Sensor Circuit DTC P0340: CMP Sensor Circuit DTC P0420: Catalyst System Low Efficiency DTC P0440: EVAP System DTC P0441: EVAP System No Flow During Purge DTC P0442: EVAP System - Small Leak Detected DTC P0443: EVAP Purge Solenoid Control Circuit DTC P0446: EVAP Vent System Performance DTC P0450: Fuel Tank Pressure Sensor Circuit DTC P0451: Fuel Tank Pressure Sensor Performance DTC P0500: VSS Circuit DTC P0505: Idle Control System DTC P0601, P0602, P0603, P0604, P0605, P0606, P0607, P1600, P1621, P1627, P1680, P1681, P1683 Or P2610: Ecu Malfunction DTC P0710: TFT Sensor Circuit DTC P1300, P1305, P1310, P1315: Ignition Coil Primary Feedback Circuits DTC P1335: CKP Sensor Circuit DTC P1346: Intake CMP System Performance DTC P1349: Intake CMP System Performance DTC P1656: Intake Camshaft Position Actuator Solenoid Control Circuit DTC P1690: Rocker Arm Actuator Solenoid Control Circuit DTC P1692: Rocker Arm Actuator System Stuck On DTC P1693: Rocker Arm Actuator System Stuck Off