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2004 Chevrolet Tahoe Question: Getting 2 engine codes; PO134 & PO135. What do these codes mean.

 

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jant00, Charlotte, NC, January 23, 2013, 11:13
 Rookie

Getting 2 engine codes; PO134 & PO135. What do these codes mean. And what's the estimate cost to repair?

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  • Answer #1

    Greg's Orange Auto (8790 Answers) , Orange, CA - (714) 361-9355
    globalhelper January 23, 2013, 12:36
     Master

    OX SENSOR HEATER CIRCUIT ISSUES. COULD BE SENSORS OR WIRING ISSUES.SEEK COMPLETE DIAG AS TO NOT WASTE MONEY

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  • Answer #2

    milesauto from Miles Auto Service Inc., January 23, 2013, 12:53
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     Master

    Codes are for the heater circuits on 2 separate oxygen sensors. Suspisious that you 2 go at same time. Could be te sensors themselves. But posssible causes are: Oxygen (O2) Sensor Wiring, Oxygen Sensors, or Powertrain Control Module (PCM)
    I cannot help you with cost....need to pin down whats wrong first.u

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