Question about 2006 Subaru Legacy

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Check engine light and cruise lights came on simultaneously.

Computer said it was the 02 sensor. Replaced both 02 sensors with Bosch universal replacement sensors. The problem still exists. Both check engine light (on solid) and cruise control light (flashing) are still on after clearing the computer.

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  • Dave Real
    Dave Real May 11, 2010

    What codes were present to think the O2 sensors were bad.

  • Anonymous Mar 17, 2014

    overheated then replaced an old hose that popped a leak. this hose is small and travels a few inches just under throttle sensor and ajacent to a few vacuum hoses that are also short and slighter larger in diameter. after replacing this burst coolant line, driving home immediately after the repair(roadside) shifting was hard(jolting) and acceleration lagged a few times when i arrived back home AT oil warning light was flashing CHECK ENGINE had been on the entire trip after repair. i did afew things at home change the thermostat and flush coolant. the ATF looked alright pink/red but maybe is a little thinner and lighter color than my vague memory suggests. can coolant have contaminated my ATF? how can i identify is the contamination exists? how does this contimination occur?

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  • Master
  • 362 Answers

Sound like the O2's heater circuit may not be working, that will set a code. I am not a big fan of univeral O2's, too many problems with bad connections and the check engine lights coming back on. You may need to use a OEM type sensor to keep the light off.

Posted on Jan 29, 2009

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