Hyundai Accent: Limitation of Active ECO operationIf the following conditions occur while Active ECO is operating, the system operation is limited even though there is no change in the ECO indicator.
Active ECO operation
Economical operationSeat Belt Pretensioner (BPT). Components and Components Location
Components
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Component(2)
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Check spark plugs and ignition system
Inspect your spark plugs as described in section 7 and replace them if necessary.
Also check all ignition wiring and components to be sure they are not cracked, worn
or damaged in any way. ...