Technical Support

Vehicle runs lean when refueled with ethanol

Vehicle operates normally even when eFlexFuel control unit is not on. You should use only gasoline if the control unit is not on. If the ethanol sensor is installed to breather hose, then the ethanol content is 0%.

How to repair

  • Check wiring harness and all the connectors. Especially ground wire and red double wire
  • Check that the ground wire is connected to ground place
  • Check that the ethanol sensor is connected to the fuel line