Check engine light diagnosed as replace cat converter bank 2.
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2005 Toyota 4Runner Question: Catalytic converter replacement. What side and what part?
Answer #1Jim Taddei September 21, 2011, 11:46Master
Bank 2 is where cylinder #2 is located, on your 4Runner that should be on the drivers side. If you look closely at the engine you will find one bank offset slightly in front of the other. The bank offset forward is #1, the rearward bank is #2. This rule works on all v-style engines.