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.
System Inspection
2014 Hyundai Azera LimitedSECTION System Inspection
- Check air leakage
- Check for contamination and installation of Gaskets.
- Check throttle body gasket.
- Check gasket between intake manifold and surge tank.
- Check for contamination or restrictions by foreign material between intake manifold and injectors.
- Check for contamination or foreign materials between surge tank and PCSV.
- Is there any air leakage?
YES
- Repair or replace as necessary and then, go to "VERIFICATION OF VEHICLE REPAIR " procedure.
NO
- Go to " 2 Check exhaust system for Restrictions" as follows.
- Check for contamination and installation of Gaskets.
- Check exhaust system for Restrictions
- Check exhaust system for:
- Restricted or broken muffler.
- Damaged catalyst.
- Is the exhaust system restricted?
YES
- Repair or replace as necessary and then, go to "VERIFICATION OF VEHICLE REPAIR " procedure.
NO
- Go to " 3 Check throttle valve for binding" as follows.
- Check exhaust system for:
- Check throttle valve for binding
- IG "OFF".
- Remove air hose between throttle body and airflow sensor.
- Check if throttle valve is stuck or binding by objects or carbon deposits.
- Is the throttle valve operating correctly?
YES
- Go to "Component Inspection" procedure.
NO
- After removing foreign material, check throttle valve operation. If replacing TPS and ETC throttle assembly, perform the "Procedure of ETC Initialization". Then, go to "VERIFICATION OF VEHICLE REPAIR ".
* Procedure of ETS Initialization
- Erase DTCs on PCM.
- Turn the ignition key off until the main relay is turned off. (It will take 10 sec.)
- Turn ignition key on for more than 1 second to record the throttle motor position on the EEPROM.
RENDER: 1.0x
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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.