YotaTech Forums - check engine light

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- - check engine light (https://www.yotatech.com/forums/f2/check-engine-light-185656/)

docktortal33

Jul 1, 2009 10:08 AM

check engine light

got this from auto zone catalyst system efficiency below threshold- bank 1 probable causes air leak in exhaust before rear h2os,af sensor error,fuel system fault,faulty catalytic converter. 1999 4 runner limited 63K any input would be appreciated :)

Doddy

Jul 1, 2009 11:05 AM

What's the actual OBDII code?

Sounds like a bad O2 sensor

IGDIEGO

Jul 1, 2009 11:09 AM

how many miles u got

docktortal33

Jul 1, 2009 11:39 AM

huh no codes on the slip from my wife ? the truck has 63000 on it :) will check back with auto zone in the am when i get home from work:0

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