Thread: P0421 Code
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Old 08-29-2010, 08:39 PM   #10
Chazberry
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Join Date: Feb 2005
Posts: 7,103

1995 SW2
2003 VUE 3.0L
Default Re: P0421 Code

Quote:
Originally Posted by snicknc View Post
Unfortunately, P0421 came back on, so I guess I'm down to changing out the pre-cat.
I'm sorry you wasted your time, but I'm a little relieved - I'd hate to be responsible for getting you fined or having your vehicle impounded.

Quote:
Originally Posted by snicknc View Post
Bank 1 is on the front of the engine, right?
I'm not positive, but I thought Bank 1 was closest to the firewall - better double check.

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