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Engine Controls - Tests W/Codes Expand All (for easy ctrl-f) Collapse All Introduction Self-Diagnostic System Test Equipment Summary Connector Identification Circuit Tests Notes Malfunction Indicator Light (Mil) DTC P0107: Manifold Absolute Pressure (Map) Sensor Low Input Voltage DTC P0108: Manifold Absolute Pressure (Map) Sensor High Input Voltage DTC P0111: Intake Air Temperature (IAT) Sensor Range/Performance DTC P0112: Intake Air Temperature (IAT) Sensor Low Input Voltage DTC P0113: Intake Air Temperature (IAT) Sensor High Input Voltage DTC P0116: Engine Coolant Temperature (ECT) Sensor Range/Performance Problem DTC P0117: Engine Coolant Temperature (ECT) Sensor Low Input Voltage DTC P0118: Engine Coolant Temperature (ECT) Sensor High Input Voltage DTC P0122: Throttle Position (TP) Sensor Low Input Voltage DTC P0123: Throttle Position (TP) Sensor High Input Voltage DTC P0131: Primary Heated Oxygen Sensor (Ho2S-1) Low Voltage DTC P0132: Primary Heated Oxygen Sensor (Ho2S-1) High Voltage DTC P0133: Primary Heated Oxygen Sensor (Ho2S-1) Slow Response DTC P0135 & P0141: Heated Oxygen Sensor (Ho2S) Heater Circuit Malfunction DTC P0137: Rear Heated Oxygen Sensor (Ho2S-2) Low Output Voltage DTC P0138: Rear Heated Oxygen Sensor (Ho2S-2) High Output Voltage DTC P0139: Rear Heated Oxygen Sensor (Ho2S-2) Slow Response DTC P0171 & P0172: Fuel System Too Lean Or Too Rich DTC P0301, P0302, P0303, P0304, P0305 & P0306: Misfire In One Cylinder DTC P0335 & P0336: Crankshaft Position (CKP) Sensor DTC P0401: EGR System Insufficient Flow Detected DTC P0420: Catalyst System Efficiency Below Threshold DTC P0452: Fuel Tank Pressure Sensor Circuit Low Input Voltage DTC P0453: Fuel Tank Pressure Sensor Circuit High Input Voltage DTC P0500: Vehicle Speed Sensor (VSS) Circuit Malfunction DTC P0505: Idle Control System Malfunction DTC P1106: Barometric Pressure (BARO) Circuit Range/Performance DTC P1107 & P1108: Barometric Pressure (BARO) Sensor Circuit High/Low Input Voltage DTC P1121: Throttle Position (TP) Lower Than Excepted DTC P1122: Throttle Position (TP) Higher Than Excepted DTC P1128: Manifold Absolute Pressure Lower Than Excepted DTC P1129: Manifold Absolute Pressure Higher Than Excepted DTC P1259: VTEC Pressure Switch Or Solenoid Valve Circuits DTC P1297: Electrical Load Detector (Eld) Low Voltage Input DTC P1298: Electrical Load Detector (Eld) High Voltage Input DTC P1300 Or P0301, P0302, P0303, P0304, P0305 & P0306: Random Misfire DTC P1361, P1362, P1366 Or P1367: Top Dead Center (TDC) Sensor DTC P1456 & P1457: EVAP Control System DTC P1491: EGR Valve Lift Insufficient Detected DTC P1498: EGR Valve Lift Sensor High Voltage DTC P1519: Idle Air Control (IAC) Valve Circuit Failure DTC P1607: Powertrain Control Module (Pcm) Internal Circuit Failure DTC P1655: SEFA/SEAF Signal Line Failure