P0420 BANK 1 O2 sensor
Joined: Apr 2003
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From: Ellicott City, Maryland USA
P0420 BANK 1 O2 sensor
P0420 BANK 1 O2 sensor that is the question?
Okay, who's gonna be the expert?
Is it the O2 sensor before the CAT or the one after?
Okay, who's gonna be the expert?
Is it the O2 sensor before the CAT or the one after?
Not an expert but can "google" :
http://www.hotrodlane.cc/New%20LS%20...TC%20P0420.htm
p420 is a generic (common to all cars) code -- so the basics of this explanation apply.
http://www.hotrodlane.cc/New%20LS%20...TC%20P0420.htm
p420 is a generic (common to all cars) code -- so the basics of this explanation apply.
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