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.
1998 Chevrolet Prizm LSi, Automatic, A245E/MS7FACTORY OEM SERVICE PROCEDURE
Engine Performance DTCS
ENGINE PERFORMANCE DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | Description |
|---|---|
| P0105 | MAP Sensor Circuit |
| P0106 | MAP Sensor System Performance |
| P0110 | IAT Sensor Circuit |
| P0115 | ECT Sensor Circuit |
| P0116 | ECT Sensor Circuit Performance |
| P0120 | TP Sensor Circuit |
| P0121 | TP Sensor System Performance |
| P0125 | ECT Excessive Time To Enter Closed Loop |
| P0130 | HO2S-1 Circuit |
| P0133 | HO2S-1 Slow Response |
| P0135 | HO2S-1 Heater Circuit |
| P0136 | HO2S-2 Circuit |
| P0141 | HO2S-2 Heater Circuit |
| P0171 | Fuel Trim System Lean |
| P0172 | Fuel Trim System Rich |
| P0300 | Engine Misfire Detected |
| P0301 | Cylinder No. 1 Misfire Detected |
| P0302 | Cylinder No. 2 Misfire Detected |
| P0303 | Cylinder No. 3 Misfire Detected |
| P0304 | Cylinder No. 4 Misfire Detected |
| P0325 | KS Circuit |
| P0335 | CKP Sensor Circuit |
| P0336 | CKP Sensor Performance |
| P0340 | CMP Sensor Circuit |
| P0420 | TWC System Efficiency Low |
| P0440 | EVAP System |
| P0441 | EVAP System Incorrect Purge Flow |
| P0446 | EVAP Vent Control System |
| P0450 | EVAP System Pressure Sensor Circuit |
| P0500 | VSS Circuit |
| P0505 | Idle Control System |
| P1300 | Ignition Control Module No. 1 Circuit |
| P1310 | Ignition Control Module No. 2 Circuit |
| P1335 | CKP Sensor Circuit |
| P1520 | Stoplight Switch Circuit |
| P1600 | PCM Battery |
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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