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titleWhat caused it and how do I fix it?

  • Sensor cable is detected but no sensor signal is present (Check your wiring connections.)

  • Fuel content error (due to contamination either material, water, or fuel type)

  • Sensor data is out of range (from contamination, short, or fuel type)

  • Ethanol content is out of range

Monitors

  • Ethanol Error

    • 1 Fuel Error

    • 2 Sensor Error

    • 3 Fuel or Sensor Error

    • 4 Ethanol out of range

    • 7 Sensor cable detected but no signal present

  • Fuel Temp
    There is a fuel temp sensor built into the ethanol content sensor

    • 1 Out of range Error

    • 7 Sensor cable detected but no signal present (same as ethanol content sensor wiring)

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Maximum safe ethanol content level exceeded:

C0BB5 - Max. Safe Ethanol Concentration Exceeded - Enabled if Ethanol final exceeds the Ethanol Sensor DTC Max. Safe Ethanol Concentration for Tune (C0BB5 DTC) threshold continuously until Ethanol Sensor DTC Max. Safe Ethanol Concentration for Tune (C0BB5 DTC) Delay expires, while C0BB1 and C0BB2 are not set.

Each calibrator will need to decide what they deem to be the maximum safe ethanol content for the mechanical configuration and use.

Setting the Ethanol Sensor DTC Max. Safe Ethanol Concentration for Tune (C0BB5 DTC) threshold to 100.00% will disable this check.

General Failure Code

COBBF - Map Programming Error - This error is caused by some type of corruption or error within the map that is reflashed to the ECU. Please try a different map or attempt to re-save the map in the latest version of the Accesstuner software. If you continue to have issues, please contact Cobb customer support with a memory snapshot (under Troubleshooting menu on Accessport) when the C0BBF code is present. DO NOT DRIVE OR OPERATE THE CAR IF THIS CODE IS PRESENT. Fatal engine damage can occur. Please have the vehicle towed to your home or preferred Protuner for diagnosis.