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

Description and operation DescriptionCVVD(Continuous Variable Valve Duration) System is a device to control the optimum open and close timing according to the driving mode by changing the valve opening section.

Components Location1. Fuel Tank 2. Fuel Pump3. Fuel Fiter4. Fuel Pressure Regulator5. Canister6. Fuel tank air filter7. Fuel pump plate cover8. Fuel filler hose9.

Other information:

Hyundai Elantra (CN7) 2021-2026 Service Manual: Description and operation

DescriptionSystem OverviewThe System offers the following features:– Human / machine interface through a 1-stage button, for terminal switching and engine start.– Control of external relays for ACC / IGN1 / IGN2 terminal switching and STARTER, without use of mechanical ignition switch.

Hyundai Elantra (CN7) 2021-2026 Service Manual: Troubleshooting

Trouble Symptom ChartsTrouble Symptom 1Trouble Symptom 2 Trouble symptom Probable cause Remedy The set vehicle speed varies greatly upward or downward"Surging" (repeated alternating acceleration and deceleration) occurs after settingMalfunction of the vehicle speed se

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