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Heated O2 Sensor

Discussion in 'The Garage' started by 91GMCSuburban, Jan 14, 2005.

  1. 91GMCSuburban

    91GMCSuburban 1/2 ton status

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    How do I hook one up if I have a single wired O2?
     
  2. dyeager535

    dyeager535 1 ton status Premium Member

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    I think there is just another ignition wire that needs hooked up, and PERHAPS a ground wire.

    Why are you installing a heated one? Are you experiencing problems with the one you have now based on it cooling off at idle? (Even the GM manual says this can be normal though)
     
  3. 91GMCSuburban

    91GMCSuburban 1/2 ton status

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    rebuilding the engine with headers and heard there is a problem with keeping the O2 sensor at the right temp.
     
  4. divorced

    divorced 3/4 ton status

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    I bought one for headers, but haven't installed them yet. You are supposed to hook up the extra two wires to a 12V switched wire and a ground.
     
  5. dyeager535

    dyeager535 1 ton status Premium Member

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    Get headers with the O2 bung if you can, if not, weld it in right after all 4 tubes join.

    I'm not running a heated one on mine, and have no problems with closed loop. Run what you have, THEN if there is a problem, go with the heated, unless you have to replace the one you have now and the price difference is justifiable.
     
  6. mo

    mo 1/2 ton status

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    I agree, definetaly try what you have first. I had bought one for my iroc when i put headers on it, tried the old one first, never had a problem, returned the heated one and saved me some moneys
     
  7. camiswelding

    camiswelding 1/2 ton status

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    cfm technologies... the tbi specialists did a write up on this on their website,,,

    cam
     

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