LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Pontiac >> 2000 >> Firebird Formula, Automatic >> Repair and Diagnosis >> Quick Lookups >> DTC Index >> Engine Performance 3.8L DTCS
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Engine Performance 3.8L DTCS

ENGINE PERFORMANCE 3.8L DIAGNOSTIC TROUBLE CODE (DTC) LIST

DTC Definition
P0102 MAF Sensor Circuit - Low Frequency
P0103 MAF Sensor Circuit - High Frequency
P0107 MAP Sensor Circuit - Low Voltage
P0108 MAP Sensor Circuit - High Voltage
P0112 IAT Sensor Circuit - Low Voltage
P0113 IAT Sensor Circuit - High Voltage
P0117 ECT Sensor Circuit - Low Voltage
P0118 ECT Sensor Circuit - High Voltage
P0121 TP Sensor Performance
P0122 TP Sensor Circuit - Low Voltage
P0123 TP Sensor Circuit - High Voltage
P0125 ECT Excessive Time To Enter Closed Loop Fuel Control
P0128 ECT Less Than Thermostat Regulating Temperature
P0131 HO2S Circuit Low Voltage - Bank 1, Sensor 1
P0132 HO2S Circuit High Voltage - Bank 1, Sensor 1
P0133 HO2S Slow Response - Bank 1, Sensor 1
P0134 HO2S Circuit Insufficient Activity - Bank 1, Sensor 1
P0135 HO2S Heater Performance - 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 2 Heater Performance - 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 Performance - Bank 2, Sensor 1
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
P0201 Injector No. 1 Control Circuit
P0202 Injector No. 2 Control Circuit
P0203 Injector No. 3 Control Circuit
P0204 Injector No. 4 Control Circuit
P0205 Injector No. 5 Control Circuit
P0206 Injector No. 6 Control Circuit
P0230 Fuel Pump Relay Control Circuit
P0300 Engine Misfire Detected
P0325 Knock Sensor Module Circuit
P0327 Knock Sensor Circuit - Bank 1
P0332 Knock Sensor Circuit - Bank 2
P0336 Crankshaft Position (CKP) Sensor Circuit
P0341 Camshaft Position (CMP) Sensor Performance
P0401 EGR System Insufficient Flow
P0403 EGR Solenoid Control Circuit
P0404 EGR Open Position Performance
P0405 EGR Position Sensor Circuit - Low Voltage
P0420 Catalyst System Low Efficiency
P0440 EVAP System
P0442 EVAP Control System Small Leak Detected
P0443 EVAP Purge Solenoid Control Circuit
P0446 EVAP Vent System Performance
P0449 EVAP Canister Vent Solenoid Valve Control Circuit
P0452 Fuel Tank Pressure Sensor Circuit - Low Voltage
P0453 Fuel Level Pressure Sensor Circuit - High Voltage
P0462 Fuel Level Sensor Circuit - Low Voltage
P0463 Fuel Level Sensor Circuit - High Voltage
P0480 Cooling Fan Relay No. 1 Control Circuit
P0481 Cooling Fan Relay No. 2 & 3 Control Circuit
P0500 Vehicle Speed Sensor (VSS) Circuit
P0506 Idle Speed RPM Low
P0507 IAC System RPM High
P0530 A/C Refrigerant Pressure Sensor Circuit
P0560 System Voltage
P0567 Cruise Control Resume Switch Circuit
P0568 Cruise Control Set Switch Circuit
P0571 Cruise Control Brake Switch Circuit
P0601 Control Module Read Only Memory (ROM)
P0602 Control Module Not Programmed
P0604 Control Module Random Access Memory (RAM)
P0606 Control Module Internal Performance
P0620 Generator Performance
P0650 Malfunction Indicator Light (MIL) Control Circuit
P0704 Clutch Switch Circuit
P1106 MAP Sensor Circuit Intermittent - High Voltage
P1107 MAP Sensor Circuit Intermittent - Low Voltage
P1111 IAT Sensor Circuit Intermittent High Voltage
P1112 IAT Sensor Circuit Intermittent Low Voltage
P1114 ECT Sensor Circuit Intermittent Low Voltage
P1115 ECT Sensor Circuit Intermittent High Voltage
P1120 TP Sensor No. 1 Circuit
P1125 Accelerator Pedal Position (APP) System
P1133 HO2S Insufficient Switching - Bank 1, Sensor 1
P1134 HO2S Transition Time Ratio - Bank 1, Sensor 1
P1153 HO2S Insufficient Switching - Bank 2, Sensor 1
P1154 HO2S Transition Time Ratio - Bank 2, Sensor 1
P1220 Throttle Position Sensor No. 2 Circuit
P1221 Throttle Position Sensor No. 1 & 2 Correlation
P1271 APP Sensors No. 1 & 2 Correlation
P1272 APP Sensors No. 2 & 3 Correlation
P1273 APP Sensors No. 1 & 3 Correlation
P1275 APP Sensor No. 1 Circuit
P1276 APP Sensor No. 1 Performance
P1280 APP Sensor No. 2 Circuit
P1281 APP Sensor No. 2 Performance
P1285 APP Sensor No. 3 Circuit
P1286 APP Sensor No. 3 Performance
P1336 CKP System Variation Not Learned
P1351 Ignition Control (IC) Circuit - High Voltage
P1352 Ignition By-Pass Circuit - High Voltage
P1361 Ignition Control (IC) Circuit - Low Voltage
P1362 Ignition By-Pass Circuit - Low Voltage
P1374 Crankshaft Position (CKP) High-To-Low Resolution Frequency Correlation
P1380 Misfire Detected - Rough Road Data Not Available
P1381 Misfire Detected - No Communication With Brake Control Module
P1404 EGR Closed Position Performance
P1441 EVAP System Flow During Non-Purge
P1515 Control Module Throttle Actuator Position Performance
P1516 Throttle Actuator Control (TAC) Module - Throttle Actuator Position Performance
P1517 Throttle Actuator Control (TAC) Module Performance
P1518 Throttle Actuator Control (TAC) Module Serial Data Circuit
P1519 Throttle Actuator Control (TAC) Module Internal Circuit
P1523 Throttle Closed Position Performance
P1546 A/C Clutch Relay Control Circuit
P1554 Cruise Control Feedback Circuit
P1571 Traction Control System (TCS) Torque Request Circuit
P1574 Stoplight Switch Circuit
P1586 Cruise Control Brake Switch No. 2 Circuit
P1626 Theft Deterrent Fuel Enable Signal Lost
P1629 Theft Deterrent Fuel Enable Signal Not Received
P1635 5-Volt Reference No. 1 Circuit (
P1639 5-Volt Reference No. 2 Circuit
P1689 Traction Control Delivered Torque Output Circuit