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  1. #1
    Join Date
    Feb 2008
    Location
    Arizona
    Posts
    648

    P0135??

    after racing a couple of friends for a couple of times, the check engine light came on.. went to get the trouble code checked and turned out to be "P0135" code.. what does that code stands for? it appears twice..
    thanks!
    06' Silverado RCSB 5.3L 4wd..
    PERFORMANCE: Cam, Springs, Pushrods, P&P heads & 3 angle valve job, Injectors, PS LT's & ORY, Nelson Tune, Catback, CAI, Comp Cam Double Timing Chain, HP Oil Pump, UD Pullies, ARP bolts, Stall, TBS, 4.10's, Iridium NGK's, G-80, 160 t-stat, HD-2 & Vette Servo, 46,000 tranny cooler, 75-125hp shot of funny Gas..
    HID's Hi, Lows & Fogs
    Waiting to be installed: LC-1 WB & Standalone system

  2. #2
    Join Date
    Feb 2007
    Location
    Spring, Texas
    Posts
    1,739
    Check this out:

    OBD-II Trouble Code: P0135 Oxygen O2 Sensor Heater Circuit Malfunction (Bank1, Sensor1)

    Good info. Not sure how accurate it is but seems like a great site!

    2004 Silverado Crew Cab, forged iron 5.7, STS w/MP turbo, 10+ psi, FMIC, Tial 50mm BOV, Vic Jr, Snow performance meth, MTI Stealth cam .220/.220 .581/.581 115lsa, Comp chromoly pushrods, Yank TT3000 stall, LS1 Efans, 160 tstat, Trucool 40k trans cooler, 60# injectors, Walbro fuel pump, Patriot springs, Built 4l65E w/billet input & output shafts, Eaton posi, SD tuned...all installed by Klein North Automotive

  3. #3
    Join Date
    Aug 2008
    Location
    North Texas
    Posts
    12,078
    Usually a bad heater in the sensor. Check for power and ground to the two heater wires at the sensor plug. If that's good, replace the sensor. Also, add-on remote start systems can cause this code per GM TSB PIP3733A.

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