how do you fix error #P0179 (Fuel Composition Sensor Circuit High Voltage) | FerrariChat
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how do you fix error #P0179 (Fuel Composition Sensor Circuit High Voltage)

Discussion in 'Technical Q&A' started by scubamike, Feb 19, 2011.

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  1. scubamike

    scubamike Formula Junior

    Nov 7, 2010
    323
    In the south
    #1 scubamike, Feb 19, 2011
    I have a 2002 360 spider . The engine light cams on when I started it today. I stopped by a place and had an OBD2 put on it. I showed error P0179. I cleared the error. Started up and no issues and no engine light on. Next time I started it the light came on again.

    I've searched the forums and also the shop manual. I can't find anything specific to resolving the error code P0179 (Fuel Composition Sensor Circuit High Voltage).

    Can anyone advise what part should be replaced and where it's located (if it easy to get to I'll replace it myself).

    thanks
     
  2. jfrazar

    jfrazar Karting
    BANNED Rossa Subscribed

    Jun 26, 2004
    223
    Savannah, GA
    Full Name:
    Joe Frazar
    #2 jfrazar, Feb 20, 2011
    It is used to tell what levels of ethanol are in your gas. One tank of bad fuel will cause this code. Ethanol attracks water. I have seen customers come in with running problems before and have lots of water in the gas and they just filled up.

    Run that tank of gas you have out completely and clear the code again. That same type of sensor is used on Flex fuel GM cars. You might want to condsider a new fuel filter.

    Joe Frazar
     

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