Hyundai Sonata: Limitation of Active ECO operation
If the following conditions occur while Active ECO is operating, the system operation is limited even though there is no change in the ECO indicator.
- When the coolant temperature is low: The system will be limited until engine performance becomes normal.
- When driving up a hill: The system will be limited to gain power when driving uphill because the engine torque is restricted.
- When using sports mode: The system will be limited according to the shift location.
- When the accelerator pedal is deeply pressed for a few seconds: The system will be limited, judging that the driver wants to speed up.
Active ECO operation
Active ECO helps improve fuel efficiency by controlling the engine and transaxle.
But fuel-efficiency can be changed by the driver's driving habits and road conditions.
When the Active E ...
Economical operation
Your vehicle's fuel economy depends mainly on your style of driving, where you
drive and when you drive.
Each of these factors affects how many miles (kilometers) you can get from a
gallon (l ...
See also:
Fuel Tank Air Filter. Repair procedures
Removal
1.
Turn the ignition switch OFF and disconnect the battery negative
(-) cable.
2.
Disconnect the canister close valve connector (A ...
Oil Cooler. Repair procedures
Removal
1.
Loosen the drain plug, and drain the coolant. Remove
the radiator cap to speed draining.
2.
Disconnect the oil cooler coolant h ...
ETC (Electronic Throttle Control) System. Troubleshooting
Fail-Safe Mode
Item
Fail-Safe
ETC Motor
Throttle valve stuck at 5°
TPS
TPS 1 fault
ECM looks at TPS2
...
