oxygen sensor / Check engine question
07-07-2005, 09:50 AM
#1
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oxygen sensor / Check engine question
Can anyone tell me exactly how many oxy sensors are on a 1999 4Runner w/ Calif emissions?
If I get a P0420 code from the computer, which ones do I replace?
Any help would be most appreciated.
Thanks,
David
If I get a P0420 code from the computer, which ones do I replace?
Any help would be most appreciated.
Thanks,
David
07-07-2005, 10:46 AM
#3
Contributing Member
Originally Posted by 94x4
Sorry that I can't tell you dgold, but you should be able to "Search" that bit of info here. 
https://www.yotatech.com/search.php?searchid=905052
Long story short, could be the O2 sensor or the catalytic converter causing the code.
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