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Diagnostic tools says oxygen sensors need replacing...after replacing them

Discussion in 'Electrical' started by puppydrum, Dec 3, 2017.

  1. Dec 3, 2017 at 2:11 PM
    #1
    puppydrum

    puppydrum [OP] Member

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    the diagnostic tool from auto zone said that all four sensors needed replacing. so i replaced them with Bosch sensors and the diagnostic tool still says the o2 sensors need replacing. is it the tool, the Bosch sensors or something else. anyone have suggestions. the Bosch sensors don't look a thing like the originals. all this is on a 2000 grand cherokee, 6 cylinder. thanks. oh yeah, the vehicle has run long enough for the engine light to turn off.
     
  2. Dec 3, 2017 at 3:27 PM
    #2
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine Moderator

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    Ive had bad luck with Non OEM O2 sensors. Might want to exchange, and replace with the factory ones?
     
    JKBob 25 and Bob like this.
  3. Dec 3, 2017 at 6:25 PM
    #3
    aggrex

    aggrex Well-Known Member

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    Tuffy>AEV>TTO>JW>STech>EVOcage>MagnaFlow>SpiderTrax>RockHard>TF>SpringTail>67design>Bolt>GPCA>Curt>
    Bosch makes great products but Bosch O2 sensors have a reputation for not resolving codes. Try an OEM O2 sensor or clear the code or another O2 sensor. Changed the right sensor in the exhaust stream?
     
    JKBob 25 likes this.
  4. Dec 4, 2017 at 8:44 AM
    #4
    OFFGRID

    OFFGRID Well-Known Member

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    Howell fuel injection, header, HEI distributor, TH350, NP208, SOA lift with YJ springs in the front & GW springs in the Rear. AMC20 with G2 1 piece chromos trussed, Dana 30 with G2 chromos and 760x ujoints and MM Stainless Hubs, Geared 4.56. Tom Woods shafts, Metal cloaks, Caged, 37" Toyo MTs.
    Did you clear the codes after replacing the sensors?
     
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