air-fuel question

Discussion in 'Engine, Fuel and Exhaust' started by rootbeerfatboy, Jul 17, 2013.

  1. rootbeerfatboy

    rootbeerfatboy Member

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    I bought my bike used and have found the o2 sensors aren't connected. I'm suspecting that the bike had a tuner in it but doesn't anymore, probably removed before I bought it. Should I reconnect them or get another tuner. All it's got is pipes and back plate is removed behind air filter. Not planning any other mods in the future. I just want the bike to run right. I bought the bike from an independent dealer and now i'm finding a lot of things missing. Beware of the small independent dealers!
     
  2. Jeff Klarich

    Jeff Klarich Well-Known Member Contributor

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    If that's all the mods that are done you won't really need a tuner. If your leaving it stock other than what you mentioned I'd re hook the o2 sensor and that should do the trick.
     
  3. Jack Klarich

    Jack Klarich Expert Member

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    http://www.hdtalking.com/archive/t-2362.html Look here first, do you have any codes?
     
  4. rootbeerfatboy

    rootbeerfatboy Member

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    Before I do that is it possible that maybe there might be a tune in the ecm without an actual tuner plugged in?
     
  5. Jack Klarich

    Jack Klarich Expert Member

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    At best it will be a H D download that is EPA compliant, if your bike is set for O2 sensors I do not see this kind of rewrite able to compensate for the sensors JMO