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.
1997 Acura 2.2CL StandardFACTORY OEM SERVICE PROCEDURE
Diagnostic Trouble Code Identification
DIAGNOSTIC TROUBLE CODE (DTC) TEST DIRECTORY
| DTC (1)(MIL/"D4" Code) (2) | System Affected | ||||
|---|---|---|---|---|---|
| P0106 (5) | Manifold Absolute Pressure (MAP) Sensor Range/Performance | ||||
| P0107 (3) | MAP Sensor Low Input Voltage | ||||
| P0108 (3) | MAP Sensor High Input Voltage | ||||
| P0112 (10) | IAT Sensor Low Input Voltage | ||||
| P0113 (10) | IAT Sensor High Input Voltage | ||||
| P0116 (86) | Engine Coolant Temperature (ECT) Sensor Range/Performance | ||||
| P0117 (6) | ECT Sensor Low Input Voltage | ||||
| P0118 (6) | ECT Sensor High Input Voltage | ||||
| P0122 (7) | Throttle Position (TP) Sensor Low Input Voltage | ||||
| P0123 (7) | TP Sensor High Input Voltage | ||||
| P0131 (1) | Primary HO2S-1 Circuit Low Voltage | ||||
| P0132 (1) | Primary HO2S-1 Circuit High Voltage | ||||
| P0133 (61) | Primary HO2S-1 Slow Response | ||||
| P0135 (41) | Primary HO2S-1 Heater Circuit Malfunction | ||||
| P0137 (63) | Secondary HO2S-2 Circuit Low Voltage | ||||
| P0138 (63) | Secondary HO2S-2 Circuit High Voltage | ||||
| P0139 (63) | Secondary HO2S-2 Slow Response | ||||
| P0141 (65) | Secondary HO2S-2 Heater Circuit Malfunction | ||||
| P0171 (45) | System Too Lean | ||||
| P0172 (45) | System Too Rich | ||||
| P0301 (71) | Misfire Cylinder No. 1 Detected | ||||
| P0302 (72) | Misfire Cylinder No. 2 Detected | ||||
| P0303 (73) | Misfire Cylinder No. 3 Detected | ||||
| P0304 (74) | Misfire Cylinder No. 4 Detected | ||||
| P0335 (4) | Crankshaft Position (CKP) Sensor Circuit Malfunction | ||||
| P0336 (4) | CKP Sensor Range/Performance | ||||
| P0401 (80) | EGR System Insufficient Flow Detected | ||||
| P0420 (67) | Catalyst System Efficiency Below Threshold | ||||
| P0441 (92) | EVAP Emission System Inadequate Purge Flow | ||||
| P0500 (17) | Vehicle Speed Sensor (VSS) Circuit Malfunction (M/T) | ||||
| P0501 (17) | VSS Circuit Malfunction (A/T) | ||||
| P0505 (14) | Idle Control System Malfunction | ||||
| P1107 (13) | BARO Circuit Low Input Voltage | ||||
| P1108 (13) | BARO Circuit High Input Voltage | ||||
| P1253 (21) | VTEC Solenoid Valve Circuits Malfunction | ||||
| P1297 (20) | Electrical Load Detector (ELD) Low Voltage Input | ||||
| P1298 (20) | ELD High Voltage Input | ||||
| P1300 (71, 72, 73, And/Or 74) | Random Misfire | ||||
| P1359 (8) | Crankshaft Position/Top Dead Center (CKP/TDC) Sensor Disconnected | ||||
| P1381 (9) | Cylinder Position (CYP) Sensor Intermittent Interruption | ||||
| P1382 (9) | CYP Sensor No Signal | ||||
| P1459 (92) | EVAP Purge Flow Switch Malfunction | ||||
| P1491 (12) | EGR Valve Lift Insufficient Detected | ||||
| P1498 (12) | EGR Valve Lift Sensor High Voltage | ||||
| P1508 (14) | Idle Air Control (IAC) Valve Circuit Failure | ||||
| P1607 (-) | PCM Internal Failure | ||||
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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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