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.
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HOMESERVICE MANUALSSUBARU2022IMPREZA BASE, 4D SEDAN, AUTOMATIC CVT TRANSREPAIR AND DIAGNOSISENGINE PERFORMANCETESTING & DIAGNOSISENGINE CONTROL SYSTEM (2.0L (EXCEPT FOR HEV)) (DIAGNOSTICS) - INTRODUCTIONINSPECTION MODEPROCEDUREINSPECTION MODE U
2022 Subaru Impreza Base, 4D Sedan, Automatic CVT Trans
Inspection Mode U
2022 Subaru Impreza Base, 4D Sedan, Automatic CVT TransSECTION Inspection Mode U
| DTC | Description and trouble part | Condition | Number of driving cycles on the detecting condition |
|---|---|---|---|
| P0401 | EGR ABNORMAL (EGR AMOUNT TOO SMALL) | - | 2 |
| P0402 | EGR "A" FLOW EXCESSIVE DETECTED | - | 2 |
WARNING:
When performing inspection mode U on a public road, pay sufficient attention to the traffic condition and give the highest priority to safe driving.
RENDER: 1.0x
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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.