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.
Conditions for Running the DTC
2005 Suzuki Swift +SECTION Conditions for Running the DTC
- The engine is running.
- The vehicle speed is less than 5 km/h (3.1 mph).
OR
- The engine is running.
- The vehicle speed is between 30-70 km/h (19-43 mph).
- DTC P1391 runs continuously once the above conditions are met.
RENDER: 1.0x
NO RELATED
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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.