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Another O2 sensor thread... need help! (2003 2.7L 3RZFE)

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Old 04-08-2013, 11:18 PM   #1
cch89135 [OP] cch89135 is offline
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Another O2 sensor thread... need help! (2003 2.7L 3RZFE)

I am in the process of freshening up my 2003 Tacoma PreRunner 2.7L.

My next task is replacing the O2 sensor(s) and I need to know what parts I need...

So far I have ordered a Denso #234-4189 and I need to know if I have to order one more of the same part. Or do I need the A/F Ratio sensor (Denso #234-9001)?

Forgive me, I am new. I searched every thread before posting though.
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Old 04-09-2013, 07:40 AM   #2
Wants to learn all about his Taco.
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I do believe that's what you need, but don't quote me on that.
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Old 04-09-2013, 11:57 AM   #3
cch89135 [OP] cch89135 is offline
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Anybody else know what parts are required? How many sensors? Which sensors?

Thanks>
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Old 04-22-2013, 05:37 PM   #4
He said "member"...
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I had to buy the gasket separately but the parts store had it.
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