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 MANUALSSUZUKI2013SX4 CROSSOVER, AUTOMATIC CVT TRANSREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 23 (ENGINE GENERAL INFORMATION AND DIAGNOSIS)DIAGNOSTIC INFORMATION AND PROCEDURESDTC P0455CIRCUIT/SYSTEM TESTINGBLOCKAGE/RESTRICTION TESTING
2013 Suzuki SX4 Crossover, Automatic CVT Trans
Blockage/Restriction Testing
2013 Suzuki SX4 Crossover, Automatic CVT TransSECTION Blockage/Restriction Testing
WARNING: This page is about a different car, the 2007 Suzuki XL7. However, it is still accessible from the selected car via links, so may be relevant.
- Connect the GE-41415-50 to the fuel tank filler neck. Connect the J 41413-200 to the GE-41415-50.
- Disconnect the EVAP vent line from the vent solenoid, and seal it, using the correct plug from the J 41413-300.
- Pressurize the EVAP system with nitrogen to 5 inches H20. Compare the Fuel Tank Pressure Sensor parameter with a scan tool to the J 41413-200 pressure/vacuum gauge. The scan tool FTP sensor parameter should be within 1 inch H20 of the pressure/vacuum gauge.
- If the FTP sensor parameter is not within 1 inch H20 of the pressure/vacuum gage, replace the FTP sensor.
- Increase the EVAP purge solenoid to 100 percent. The FTP sensor pressure should drop to less than 1 in H2O.
- If the FTP sensor parameter is greater than 1 in H2O, disconnect the EVAP pipes listed below one at a time while observing the FTP sensor parameter with a scan tool. If the FTP sensor parameter drops to less than 1 in H2O when a pipe is disconnected, repair the blockage or restriction in the one of the following EVAP pipe/hoses:
- EVAP purge vacuum source from the EVAP purge solenoid
- EVAP purge pipe from the EVAP purge solenoid
- EVAP purge pipe at the EVAP canister
- EVAP vapor pipe at the EVAP canister
- If you cannot locate a condition with the EVAP system, refer to DIAGNOSTIC AIDS for additional information.
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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.