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.
Drive Cycle R
| DTC | Item | Condition |
|---|---|---|
| P219A | BANK 1 AIR-FUEL RATIO IMBALANCE | - |
- Check the data in condition column of table by using the Subaru Select Monitor or general scan tool.NOTE:
- Subaru Select Monitor
For detailed operation procedures, refer to "Current Data Display For Engine". Ref. to ENGINE (DIAGNOSTICS) (EXCEPT FOR STI)>Subaru Select Monitor>OPERATION>DISPLAY CURRENT ENGINE DATA .
- General scan tool
For detailed operation procedures, refer to the general scan tool operation manual.
- Subaru Select Monitor
- Keep the engine at idle for at least 30 seconds in a fully warm-up condition.
- Start the driving.
- With the gear position in the 4th, take 10 seconds to accelerate from 1500 rpm to 4000 rpm.
- Decelerate to 1500 rpm in the 4th gear position. (There is no restrictions to the deceleration duration and how to use the brake.)
- Repeat 4) and 5) 10 times (end when the temporary code is acquired).
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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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