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.
2012 Lincoln MKS Base, FWDFACTORY OEM SERVICE PROCEDURE
Fuel System DTCS
EVAPORATIVE EMISSION (EVAP) SYSTEM DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | Description | Action |
|---|---|---|
| P0446 | Evaporative Emission System Vent Control Circuit | GO to PINPOINT TEST A . |
| P0451 | Evaporative Emission System Pressure Sensor/Switch Range/Performance | GO to PINPOINT TEST A . |
| P0452 | Evaporative Emission System Pressure Sensor/Switch Low | GO to PINPOINT TEST A . |
| P0453 | Evaporative Emission System Pressure Sensor/Switch High | GO to PINPOINT TEST A . |
| P0454 | Evaporative Emission System Pressure Sensor/Switch Intermittent | GO to PINPOINT TEST A . |
| P1450 | Unable to Bleed up Fuel Tank Vacuum | GO to PINPOINT TEST A . |
| P1451 | Evaporative Emission System Vent Control Circuit | GO to PINPOINT TEST A . |
| P260F | Emission System Monitoring Processor Performance | GO to PINPOINT TEST A . |
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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