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Engine Light.

Discussion in '1st Gen. Tacomas (1995-2004)' started by Gwest1967, May 24, 2010.

  1. May 24, 2010 at 9:01 AM
    #1
    Gwest1967

    Gwest1967 [OP] Active Member

    Joined:
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    First Name:
    Gregg
    S.E. Kansas
    Vehicle:
    SR5 V6 4x4 Ext Cab
    16 inch tires/wheels
    2001 3.4 V6 engine light.. Mechanic says Cat convertor, some on here say o2 sensor.. Which do I change?? Cant afford to do both.. My truck has 168k on it.. Muffler shop says that he can take 2 off and put one on.. about $225. Sensors are $90- $120 each. Has anyone else had this problem?? I am stressed, do I change sensors, or cat?? What do you all think?? Thanks...
     
  2. May 24, 2010 at 9:14 AM
    #2
    EnolaGaia

    EnolaGaia Well-Known Member

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    Midwest USA
    Vehicle:
    '01 & '04 S-Runners
    01 SR: Double Cab conversion, S/C, lowered.
    Exactly which code is being thrown??? ...
     
  3. May 24, 2010 at 9:51 AM
    #3
    Gwest1967

    Gwest1967 [OP] Active Member

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    Gregg
    S.E. Kansas
    Vehicle:
    SR5 V6 4x4 Ext Cab
    16 inch tires/wheels
    Mechanic says its a cat convertor code.
     
  4. May 24, 2010 at 10:07 AM
    #4
    Gwest1967

    Gwest1967 [OP] Active Member

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    Gregg
    S.E. Kansas
    Vehicle:
    SR5 V6 4x4 Ext Cab
    16 inch tires/wheels
    I going to have it rechecked tomorrow.. But leaning towards cat convertor..
     
  5. May 24, 2010 at 10:34 AM
    #5
    chmura

    chmura Well-Known Member

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    I would first change the O2 sensor. You can do it on your own. I just changed my uncles O2 sensor on my drive way, took less then 15 minutes. Just 2 10mm bolts hold it in place.

    Do NOT go aftermarket on this sensor. Get the oem Denso sensor if you dont want any headaches in the future.
     
  6. May 24, 2010 at 10:42 AM
    #6
    Monkeysuncle

    Monkeysuncle My Cat's breath Smells like Cat Food

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    Kevin
    Florida
    Vehicle:
    99 Tacoma SR5 4x4 5 speed Manual Hubs
    Diff Breather,CB thingy,GPS,Cop Shocks,Cop Breaks, old Man Emu 881's Dakar Leaf Springs and Nitro sport shocks. Deck Plate mod
    Mine did same thing, I have a 1999 3.4. I did a bit of looking on line, and found this place, I then found the how to clean a MAF sensor post, and for less than 10 Bucks and 20 minutes work I didn't have a CEL anymore. I think I had to disconnect battery,remove and clean maf, replace it go inside, drink a cold one, come back, and reattach battery start truck and no more check engine light. Those dam maf sensors don't like being dirty, gave me the o2 sensor code also. Try the easy things first then open the wallet. They sell MAF cleaner or electronics parts cleaner works also, it's the same thing, at auto parts stores. Good luck
     
  7. May 24, 2010 at 1:02 PM
    #7
    shitroc

    shitroc Master of War

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    Ant
    New Brunswick, Canada
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    Listed in sig.......
    hope its just a o2 sensor man even though theyre a tad expensive it would cheaper then a new cat
     
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