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CEL on, truck dies after starting???

Discussion in '2nd Gen. Tacomas' started by scottj, Oct 4, 2010.

  1. scottj

    scottj [OP] Well-Known Member

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    Well today I went out and started my 07' Tacoma and it dies. Try again and it runs but idles rough and is lacking power. Scanned at AutoZone shows codes for (4) different O2 sensors and (1) for the MAF. Just turned over 60K miles. Any ideas?
     
  2. BlueT

    BlueT Well-Known Member

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    I moded 1999 Taco so much it had turned to Land Cruiser
    Post the exact codes ...
     
  3. tacos

    tacos Well-Known Member

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    I would first start with replacing the MAF meter, it is located on the intake tube. Do that then clear the codes and see if the O2 sensor codes return. The mass air flow code may be throwing the 02 codes because a faulty maf will lean out the truck. A faulty MAF will cause your truck to accelerate like crap and have no power because the a/f ratio is incorrect.
     
  4. memario1214

    memario1214 Vivid Illumination Vendor

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    Yeah that ^^^ is correct. My cats didn't go out until just recently here at about 85k
     
  5. tiger955

    tiger955 Well-Known Member

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    Before you replace anything... unplug and plug back in your MAF sensor and check all of the pipes between it and your throttle body. Also check to make sure all vacuum lines are connected. Any air leaks between the MAF and the engine will cause the MAF to read the wrong airflow and a lean mixture, if too lean the O2's will not read properly setting those codes also. The codes will need to be cleared once the repair is made or the light will still stay on.
     
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