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 MANUALSSUBARU2014OUTBACK 2.5I, STANDARD TRANSREPAIR AND DIAGNOSISENGINE PERFORMANCETESTING & DIAGNOSISDIAGNOSTIC TROUBLE CODE (DTC) DETECTING CRITERIA (H4DO)DIAGNOSTIC TROUBLE CODE (DTC) DETECTING CRITERIADTC P050A COLD START IDLE AIR CONTROL SYSTEM PERFORMANCEENABLE CONDITIONS
2014 Subaru Outback 2.5i, Standard Trans
Enable Conditions
2014 Subaru Outback 2.5i, Standard TransSECTION Enable Conditions
ENABLE CONDITIONS
| Secondary Parameters | Enable Conditions |
|---|---|
| < Exhaust gas temperature diagnosis > | |
| Atmospheric pressure | ≥ 75 kPa (563 mmHg, 22.2 inHg) |
| Battery voltage | > 10.9 V |
| Engine condition | In operation |
| Vehicle speed | ≤ 2 km/h (1.2 MPH) |
| Elapsed time after gear position change (P ↔ D or N ↔ D) | ≥ 3000 ms |
| ISC feedback | In operation |
| Throttle opening angle | < 0.37 ° |
| Fuel property | Not extremely low volatility |
| Target retard amount | ≥ 11 °CA (AT model) |
| ≥ 11 °CA (MT model) | |
| < Idle speed diagnosis > | |
| Atmospheric pressure | ≥ 75 kPa (563 mmHg, 22.2 inHg) |
| Battery voltage | > 10.9 V |
| Engine condition | In operation |
| Vehicle speed | ≤ 2 km/h (1.2 MPH) |
| Engine coolant temperature | ≤ 60 °C (140 °F) |
| Intake air amount sum value | ≤ Value of Map 1 |
| Elapsed time after gear position change (P ↔ D or N ↔ D) | ≥ 3000 ms |
| Throttle opening angle | < 0.37 ° |
| Fuel property | Not extremely low volatility |
| Elapsed time after starting the engine | ≥ 2000 ms |
| < Final ignition timing diagnosis > | |
| Atmospheric pressure | ≥ 75 kPa (563 mmHg, 22.2 inHg) |
| Battery voltage | > 10.9 V |
| Engine condition | In operation |
| Vehicle speed | ≤ 2 km/h (1.2 MPH) |
| Engine coolant temperature | ≤ 60 °C (140 °F) |
| Intake air amount sum value | ≤ Value of Map 2 |
| Elapsed time after gear position change (P ↔ D or N ↔ D) | ≥ 3000 ms |
| Throttle opening angle | < 0.37 ° |
| Fuel property | Not extremely low volatility |
| Target retard amount | ≥ Value from Map 3 |
MAP 1
| Engine coolant temperature at engine starting °C (°F) | -40 (-40) | -30 (-22) | -20 (-4) | -10 (14) | 0 (32) | 10 (50) | 20 (68) | 30 (86) |
| Intake air amount sum value g (oz) | 770 (27.16) | 690 (24.34) | 620 (21.87) | 560 (19.75) | 510 (17.99) | 450 (15.87) | 390 (13.76) | 320 (11.29) |
ENABLE CONDITIONS
| Engine coolant temperature at engine starting °C (°F) | 40 (104) | 50 (122) | 60 (140) | 70 (158) | 80 (176) | 90 (194) | 100 (212) | 110 (230) |
| Intake air amount sum value g (oz) | 260 (9.17) | 210 (7.41) | 180 (6.35) | 180 (6.35) | 180 (6.35) | 180 (6.35) | 180 (6.35) | 180 (6.35) |
MAP 2
| Engine coolant temperature at engine starting °C (°F) | -40 (-40) | -30 (-22) | -20 (-4) | -10 (14) | 0 (32) | 10 (50) | 20 (68) | 30 (86) |
| Intake air amount sum value g (oz) | 770 (27.16) | 690 (24.34) | 620 (21.87) | 560 (19.75) | 510 (17.99) | 450 (15.87) | 390 (13.76) | 320 (11.29) |
ENABLE CONDITIONS
| Engine coolant temperature at engine starting °C (°F) | 40 (104) | 50 (122) | 60 (140) | 70 (158) | 80 (176) | 90 (194) | 100 (212) | 110 (230) |
| Intake air amount sum value g (oz) | 260 (9.17) | 210 (7.41) | 180 (6.35) | 180 (6.35) | 180 (6.35) | 180 (6.35) | 180 (6.35) | 180 (6.35) |
MAP 3
| Engine coolant temperature | -40 °C (-40 °F) | -30 °C (-22 °F) | -20 °C (-4 °F) | -10 °C (14 °F) | 0 °C (32 °F) | 10 °C (50 °F) | 20 °C (68 °F) | 30 °C (86 °F) | 40 °C (104 °F) | 50 °C (122 °F) | 60 °C (140 °F) |
| Target retard amount (AT model) | 11 °CA | 11 °CA | 11 °CA | 11 °CA | 11 °CA | 11 °CA | 11 °CA | 11 °CA | 11 °CA | 11 °CA | 11 °CA |
| Target retard amount (MT model) | 11 °CA | 11 °CA | 11 °CA | 11 °CA | 11 °CA | 11 °CA | 11 °CA | 11 °CA | 11 °CA | 11 °CA | 11 °CA |
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.