Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2003 Acura 3.2TL BaseFACTORY OEM SERVICE PROCEDURE
Engine Performance DTCS
ENGINE PERFORMANCE DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION
| DTC (MIL) | Description |
|---|---|
| P0107 | Manifold Absolute Pressure Sensor Circuit Low Voltage/Input |
| P0108 | Manifold Absolute Pressure Sensor Circuit High Voltage/Input |
| P0112 | Intake Air Temperature Sensor Circuit Low Voltage/Input |
| P0113 | Intake Air Temperature Sensor Circuit High Voltage/Input |
| P0116 | Engine Coolant Temperature Sensor Range/Performance Problem |
| P0117 | Engine Coolant Temperature Sensor Circuit Low Voltage/Input |
| P0118 | Engine Coolant Temperature Sensor Circuit High Voltage/Input |
| P0122 | Throttle Position Sensor Circuit Low Voltage/Input |
| P0123 | Throttle Position Sensor Circuit High Voltage/Input |
| P0128 | Thermostat Range/Performance Problem |
| P0131 | Primary Heated Oxygen Sensor Circuit Low Voltage |
| P0132 | Primary Heated Oxygen Sensor Circuit High Voltage |
| P0133 | Primary Heated Oxygen Sensor Circuit Slow Response |
| P0135 | Primary Heated Oxygen Sensor Heater Circuit Malfunction |
| P0137 | Secondary Heated Oxygen Sensor Circuit Low Voltage |
| P0138 | Secondary Heated Oxygen Sensor Circuit High Voltage |
| P0139 | Secondary Heated Oxygen Sensor Slow Response |
| P0141 | Secondary Heated Oxygen Sensor Heater Circuit Malfunction |
| P0171 | Fuel System Too Lean |
| P0172 | Fuel System Too Rich |
| P0300 | Random Misfire |
| P0301 | Cylinder No. 1 Misfire Detected |
| P0302 | Cylinder No. 2 Misfire Detected |
| P0303 | Cylinder No. 3 Misfire Detected |
| P0304 | Cylinder No. 4 Misfire Detected |
| P0305 | Cylinder No. 5 Misfire Detected |
| P0306 | Cylinder No. 6 Misfire Detected |
| P0325 | Knock Sensor Circuit Malfunction |
| P0335 | Crankshaft Position Sensor "A" Circuit Malfunction |
| P0336 | Crankshaft Position Sensor "A" Intermittent Interruption |
| P0335 | Crankshaft Position Sensor "A" Circuit Malfunction |
| P0336 | Crankshaft Position Sensor "A" Range/Performance Problem |
| P0340 | Camshaft Position Sensor "A" Circuit Malfunction |
| P0341 | Camshaft Position Sensor "A" Circuit Range/Performance Problem Interruption |
| P0365 | Camshaft Position Sensor "B" Circuit Malfunction |
| P0366 | Camshaft Position Sensor "B" Circuit Range/Performance Problem Interruption |
| P0385 | Crankshaft Position Sensor "B" No Signal |
| P0386 | Crankshaft Position Sensor "B" Intermittent Interruption |
| P0401 | Exhaust Gas Recirculation Insufficient Flow Detected |
| P0420 | Catalyst System Efficiency Below Threshold |
| P0451 | Fuel Tank Pressure Sensor Range/Performance Problem |
| P0452 | Fuel Tank Pressure Sensor Low Voltage |
| P0453 | Fuel Tank Pressure Sensor High Voltage |
| P0505 | Idle Control System Malfunction |
| P0715 | Mainshaft Speed Sensor Circuit Malfunction |
| P0720 | Countershaft Speed Sensor Circuit Malfunction |
| P1106 | Barometric Pressure Sensor Range/Performance Problem |
| P1107 | Barometric Pressure Sensor Circuit Low Voltage |
| P1108 | Barometric Pressure Sensor Circuit High Voltage |
| P1121 | Throttle Position Sensor Signal Lower Than Expected |
| P1122 | Throttle Position Sensor Signal Higher Than Expected |
| P1128 | Manifold Absolute Pressure Sensor Signal Lower Than Expected |
| P1129 | Manifold Absolute Pressure Sensor Signal Higher Than Expected |
| P1259 | Variable Valve Timing & Lift Electronic Control System Malfunction |
| P1297 | Electrical Load Detector Circuit Low Voltage |
| P1298 | Electrical Load Detector Circuit High Voltage |
| P1361 | Camshaft Position Sensor "A" Intermittent Interruption |
| P1362 | Camshaft Position Sensor "A" No Signal |
| P1366 | Camshaft Position Sensor "A" Intermittent Interruption |
| P1367 | Camshaft Position Sensor "A" No Signal |
| P1456 | Evaporative Emission Control System Leak Detected (Fuel Tank System) |
| P1457 | Evaporative Emission Control System Leak Detected (EVAP Control Canister System) |
| P1486 | Thermostat Range/Performance Problem |
| P1491 | Exhaust Gas Recirculation Valve Insufficient Lift Detected |
| P1498 | Exhaust Gas Recirculation Valve Lift Sensor High Voltage |
| P1519 | Idle Air Control Valve Circuit Malfunction |
| P1607 | Powertrain Control Module Internal Circuit Malfunction |
| P1676 | Frame-To-Powertrain Torque Down Request Signal Line Failure |
| P1678 | Frame-To-Powertrain Torque Down Request Signal Line Failure |
Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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