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 MANUALSSATURN2009ASTRA XR, 2D HATCHBACK, AUTOMATICREPAIR AND DIAGNOSISENGINE PERFORMANCETESTING & DIAGNOSISENGINE CONTROLS AND FUEL - 1.6L (LDE OR LLU) AND 1.8L (2H0) - DTC PO341 TO DTC P2544DTC P0496CIRCUIT/SYSTEM TESTING
2009 Saturn Astra XR, 2D Hatchback, Automatic
Circuit/System Testing
2009 Saturn Astra XR, 2D Hatchback, AutomaticSECTION Circuit/System Testing
- Disconnect the EVAP vent pipe from the EVAP canister vent solenoid valve.
- Seal the EVAP vent pipe using a plug from the J 41413-300 .
- Turn ON the ignition.
- Command the EVAP canister purge solenoid valve to 0 percent with a scan tool.
- Start the engine.
- Observe the FTP sensor with a scan tool. The Fuel Tank Pressure Sensor parameter should be less than 1.7 volts after 90 seconds.
- If the Fuel Tank Pressure Sensor parameter is greater than the specified range, replace the EVAP canister purge solenoid valve.
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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.