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PO402 and PO135

Discussion in 'Technical Chat' started by PacNWgen1, Oct 6, 2010.

  1. Oct 6, 2010 at 11:55 AM
    #1
    PacNWgen1

    PacNWgen1 [OP] NewHere

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    Adam
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    96' Tacoma Reg Cab 2.7l 4x4 5-speed 150,000+
    DynoMax ST, Deck Plate, Full Syn, Soon Header and Slotted Rotors
    1996 2.7l....Seems to run better when cold or let it rest. If I drive for 20 or 30 minutes straight it starts falling on its face and stubbling at partial throttle and will clear up at full throttle.
     
  2. Oct 6, 2010 at 6:05 PM
    #2
    PacNWgen1

    PacNWgen1 [OP] NewHere

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    96' Tacoma Reg Cab 2.7l 4x4 5-speed 150,000+
    DynoMax ST, Deck Plate, Full Syn, Soon Header and Slotted Rotors
    Any ideas? Think I might try and replace the vac lines tomorrow.
     
  3. Oct 6, 2010 at 7:29 PM
    #3
    98tacoma27

    98tacoma27 is gooder 'en chicken Moderator

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    Your AFR sensor is shot. That's the 135 code. The 402 is the EGR system. It is more than likely a result of the AFR malfunctioning.
     
  4. Oct 7, 2010 at 11:24 AM
    #4
    PacNWgen1

    PacNWgen1 [OP] NewHere

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    Adam
    Oregon
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    96' Tacoma Reg Cab 2.7l 4x4 5-speed 150,000+
    DynoMax ST, Deck Plate, Full Syn, Soon Header and Slotted Rotors
    Thanks..... Is there any way to test it? Or just buy one and put it in?
     
  5. Oct 7, 2010 at 11:29 AM
    #5
    98tacoma27

    98tacoma27 is gooder 'en chicken Moderator

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    05 Tundra SR5 (+250k AND COUNTING), 88 SR5 PU (SOLD), 98 TRD OR (CRUSHED)
    5100's all on fours
  6. Oct 10, 2010 at 9:32 AM
    #6
    PacNWgen1

    PacNWgen1 [OP] NewHere

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    Adam
    Oregon
    Vehicle:
    96' Tacoma Reg Cab 2.7l 4x4 5-speed 150,000+
    DynoMax ST, Deck Plate, Full Syn, Soon Header and Slotted Rotors
    I have just replaced the AFR sensor within the last year but I put in a new header recently and some one in town here told me if I put it in wrong it could burn it up quick. Is there any truth to that? I will check the resistance today. Thx
     
  7. Oct 10, 2010 at 9:33 AM
    #7
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    Only way to "Put it in wrong" is to have leaks....Headers only can fit one way....
     
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