Engine Performance - 8.1 L DTCS
ENGINE PERFORMANCE - 8.1 L DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | Description |
|---|---|
| P0101 | Mass Air Flow Sensor Performance |
| P0102 | Mass Air Flow Sensor Circuit - Low Frequency |
| P0103 | Mass Air Flow Sensor Circuit - High Frequency |
| P0106 | MAP System Performance |
| P0107 | MAP Sensor Circuit - Low Voltage |
| P0108 | MAP Sensor Circuit - High Voltage |
| P0112 | IAT Sensor Circuit - Low Voltage |
| P0113 | IAT Sensor Circuit - High Voltage |
| P0116 | ECT Sensor Performance (Sierra & Silverado) |
| P0116 | ECT Sensor Performance (Avalanche, Suburban & Yukon XL) |
| P0117 | ECT Sensor Circuit - Low Voltage |
| P0118 | ECT Sensor Circuit - High Voltage |
| P0120 | TP Sensor Circuit |
| P0125 | Excess Time To Enter Closed Loop Fuel Control (Avalanche, Suburban & Yukon XL) |
| P0128 | ECT Less Than Thermostat Regulating Temperature (Avalanche, Suburban & Yukon XL) |
| P0131 | HO2S Circuit - Low Voltage - Bank 1, Sensor 1 |
| P0132 | HO2S Circuit - High Voltage - Bank 1, Sensor 1 |
| P0133 | HO2S Circuit - Slow Response - Bank 1, Sensor 1 |
| P0134 | HO2S Circuit - Insufficient Activity - Bank 1, Sensor 1 |
| P0135 | HO2S Heater Circuit - Bank 1, Sensor 1 |
| P0137 | HO2S Circuit - Low Voltage - Bank 1, Sensor 2 |
| P0138 | HO2S Circuit - High Voltage - Bank 1, Sensor 2 |
| P0140 | HO2S Circuit - Insufficient Activity - Bank 1, Sensor 2 |
| P0141 | HO2S Heater Circuit - Bank 1, Sensor 2 |
| P0151 | HO2S Circuit - Low Voltage - Bank 2, Sensor 1 |
| P0152 | HO2S Circuit - High Voltage - Bank 2, Sensor 1 |
| P0153 | HO2S Circuit - Slow Response - Bank 2, Sensor 1 |
| P0154 | HO2S Circuit - Insufficient Activity - Bank 2, Sensor 1 |
| P0155 | HO2S Heater Circuit - Bank 2, Sensor 1 |
| P0157 | HO2S Circuit - Low Voltage - Bank 2, Sensor 2 |
| P0158 | HO2S Circuit - High Voltage - Bank 2, Sensor 2 |
| P0160 | HO2S Circuit - Insufficient Activity - Bank 2, Sensor 2 |
| P0161 | HO2S Heater Circuit - Bank 2, Sensor 2 |
| P0171 | Fuel Trim System Lean - Bank 1 |
| P0172 | Fuel Trim System Rich - Bank 1 |
| P0174 | Fuel Trim System Lean - Bank 2 |
| P0175 | Fuel Trim System Rich - Bank 2 |
| P0200 | Fuel Injector Control Circuit |
| P0220 | Throttle Position Sensor 2 Circuit |
| P0230 | Fuel Pump Control Relay Circuit |
| P0300 | Engine Misfire Detected |
| P0315 | Crankshaft Position Sensor Variation Not Learned |
| P0325 | Knock Sensor Module Circuit |
| P0327 | Knock Sensor Circuit - Low Voltage - Sensor 1 |
| P0332 | Knock Sensor Circuit - Low Voltage - Sensor 2 |
| P0335 | Crankshaft Position Sensor Circuit |
| P0336 | Crankshaft Position Sensor Circuit Performance |
| P0341 | Camshaft Position Sensor Circuit Performance |
| P0342 | Camshaft Position Sensor Signal Low |
| P0343 | Camshaft Position Sensor Signal High |
| P0351, P0352, P0353, P0354, P0355, P0356, P0357, P0358 | Ignition Control Circuit |
| P0401 | EGR System - Insufficient Flow |
| P0404 | EGR Valve Open Pintle Position |
| P0405 | EGR Valve Pintle Position Circuit - Low Voltage |
| P0420 | TWC System - Low Efficiency - Bank 1 |
| P0430 | TWC System - Low Efficiency - Bank 2 |
| P0442 | EVAP System - Small Leak |
| P0443 | EVAP Purge Solenoid Control Circuit |
| P0446 | EVAP Vent Valve Performance |
| P0449 | EVAP Vent Valve Performance |
| P0452 | Fuel Tank Pressure Sensor - Low Voltage |
| P0453 | Fuel Tank Pressure Sensor - High Voltage |
| P0455 | EVAP System Leak Detected - Gross Leak/No Flow |
| P0496 | EVAP System High Purge Flow |
| P0506 | Idle Control System - RPM Low |
| P0507 | Idle Control System - RPM High |
| P0601, P0602, P0603, P0604, P0605, P0606, P0607 | PCM Memory |
| P0641 | 5-Volt Reference Circuit Out Of Range |
| P0650 | Malfunction Indicator Lamp Control Circuit |
| P0651 | Sensor Reference Voltage "B" Circuit/Open |
| P0700 | Transmission Control System (MIL Request) |
| P0802 | Transmission Control System MIL Request Circuit Open |
| P1106 | MAP Sensor Circuit Intermittent High Voltage |
| P1107 | MAP Sensor Circuit Intermittent Low Voltage |
| P1111 | Intake Air Temperature Sensor Circuit - Intermittent High Voltage |
| P1112 | Intake Air Temperature Sensor Circuit - Intermittent Low Voltage |
| P1114 | Engine Coolant Temperature Sensor Circuit - Intermittent Low Voltage |
| P1115 | Engine Coolant Temperature Sensor Circuit - Intermittent High Voltage |
| P1125 | Accelerator Pedal Position Sensors Out Of Range Or Disagree |
| P1133 | HO2S Circuit - Insufficient Switching - Bank 1, Sensor 1 |
| P1153 | HO2S Circuit - Insufficient Switching - Bank 2, Sensor 1 |
| P1172 | Secondary Fuel Pump Transfer Malfunction |
| P1380 | EBCM DTC Detected Rough Road Data Unstable |
| P1381 | Misfire Detected - No EBCM/PCM Serial Data |
| P1404 | EGR Valve Closed Pintle Position |
| P1514 | Airflow Rate Excessive |
| P1515 | Predicted VS Actual Throttle Position Correlation Error |
| P1516 | Predicted VS Actual Throttle Position Correlation Error |
| P1518 | Throttle Actuator Control Module Serial Data Fault |
| P1600 | PCM Memory |
| P1621 | PCM Memory |
| P1627 | PCM Memory |
| P1680 | PCM Memory |
| P1681 | PCM Memory |
| P1683 | PCM Memory |
| P2108 | Throttle Actuator Control Module Circuit Fault |
| P2120 | APP Sensor 1 Signal Or APP Sensor 5-Volt Reference Out Of Range |
| P2121 | APP Sensor 1 Signal And APP Sensor 2 Signal Circuits Out Of Correlation |
| P2125 | APP Sensor 2 Signal Or APP Sensor 5-Volt Reference Out Of Range |
| P2135 | TP Sensors No. 1 & 2 Signals Disagree Or Signal Voltages Out Of Range |
| P2610 | PCM Memory |