Hyundai Elantra (CN7): Engine Control / Fuel System / Engine Control System

Special Service Tools Tool Name / Number Illustration Description Fuel Pressure Gauge09353-24100Used for measuring the pressure in fuel lineFuel Pressure Gauge Adapter09353-02100 Used for connecting between delivery and fuel feed tube to measure the pressure in fuel line Heated Oxygen Sensor Socket Wrench09392-1Y100Used for removing / installing heated oxygen sensor※SST 09392-2H100 also can be usedInjector Combustion Seal Guide & Sizing tool09353-2B000Installation of the injector combustion sealTorque Wrench Socket09314-3Q100 or 09314-27130 (19mm)Removal and installation of the high pressure fuel pipeFuel pump plage cover remover09310-B8100Removal and installation of the fuel pump

DescriptionIf the Gasoline Engine Control system components (sensors, ECM, injector, etc.) fail, interruption to the fuel supply or failure to supply the proper amount of fuel for various engine operating conditions will result.

Other information:

Hyundai Elantra (CN7) 2021-2026 Service Manual: Compressor oil

Repair procedures Oil Specification1.The HFC-134a system requires synthetic (PAG) compressor oil whereas the R-12 system requires mineral compressor oil. The two oils must never be mixed.2.Compressor (PAG) oil varies according to compressor model. Be sure to use oil specified for the model of compressor.

Hyundai Elantra (CN7) 2021-2026 Service Manual: PM Sensor

Description and operation DiscriptionMonitor the air quality inside the vehicle in real time (PM sensor) and display the status on the screen.Automatically operate when fine dust concentration is high (Condition: Bet mode + A/C ON + 3rd speed or higher) Components and components location Components Location1.

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