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 MANUALSHYUNDAI2005ELANTRA GLS, 4D HATCHBACK, AUTOMATICREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCEENGINE CONTROL SYSTEMSFUEL SYSTEMDTC TROUBLESHOOTING PROCEDURESDTC P0452: EVAP. EMISSION SYSTEM-PRESSURE SENSOR LOW INPUTFUEL TANK PRESSURE SENSOR INSPECTION
2005 Hyundai Elantra GLS, 4D Hatchback, Automatic
Fuel Tank Pressure Sensor Inspection
2005 Hyundai Elantra GLS, 4D Hatchback, AutomaticSECTION Fuel Tank Pressure Sensor Inspection
- Ignition "ON" & Engine "OFF".
- Disconnect the hose connecting fuel pump and FTPS.
- Install vacuum pump in the hose at fuel pump side.
- Apply vacuum pressure 3.75 cmHg (50 hPa) and 1.50 cmHg (20 hPa), and measure FTPS output voltage.
Specification : Voltage value will vary depending on variation in vacuum pressure
- Is voltage within the specification?
YES
- Check for poor connection between PCM and component: backed out terminal, improper mating, broken locks or poor terminal to wire connection. Repair as necessary and go to VERIFICATION OF VEHICLE REPAIR procedure
NO
- Check for cracks or damage in hose connecting canister and fuel pump. Repair or replace as necessary.
- Check for open or short in FTPS harness. Repair as necessary.
If OK, test with a new FTPS and check for proper operation. If problem is corrected, replace FTPS and go to VERIFICATION OF VEHICLE REPAIR procedure
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.