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.
2019 Subaru Outback 2.5iFACTORY OEM SERVICE PROCEDURE
Drive Cycle Z
| DTC | Item | Condition | Number of driving cycles on the detecting condition |
|---|---|---|---|
| P0030 | A/F/O2 HEATER CONTROL CIRCUIT BANK 1 SENSOR 1 | - | 2 |
| P0068 | MAP/MAF - THROTTLE POSITION CORRELATION | - | 2 |
| P0101 | MASS OR VOLUME AIR FLOW SENSOR "A" CIRCUIT RANGE/PERFORMANCE | - | 2 |
| P219C | CYLINDER 1 AIR-FUEL RATIO IMBALANCE | - | 2 |
| P219D | CYLINDER 2 AIR-FUEL RATIO IMBALANCE | - | 2 |
| P219E | CYLINDER 3 AIR-FUEL RATIO IMBALANCE | - | 2 |
| P219F | CYLINDER 4 AIR-FUEL RATIO IMBALANCE | - | 2 |
Diagnostic procedure:
WARNING:
When performing the drive cycle Z on the public road, be very careful of the traffic condition and the safe driving must be the high priority.
- Perform the Clear Memory Mode. Ref. to ENGINE (DIAGNOSTICS) (H4DO)>CLEAR MEMORY MODE .
- Drive according to the drive pattern described below.
- Read the temporary code using the Subaru Select Monitor or general scan tool. Ref. to ENGINE (DIAGNOSTICS) (H4DO)>READ DIAGNOSTIC TROUBLE CODE (DTC)>OPERATION .
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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