P0170

DTC P0170 / FUEL TRIM MALFUNCTION (BANK 1)

Hyundai does not provide a trouble code diagnostic procedure.
Refer to the Fuel System for testing and inspection.
Fuel Delivery and Air Induction

- Fuel System (Fuel tank/Press. regulator/Fuel Pump/PCSV)
- Connection of fuel line hose/sealing/cut
- Sealing between purge valve and fuel tank
- Air leak in the exhaust system
- Ignition system
- Engine