02 Circuit

Kieran A. Lavin kieran at kieranlavin.com
Tue Mar 16 13:43:31 CDT 2010

Have you actually pulled the code off the ecu though?  See what that trouble code is and get your hands on an FSM and go through the troubleshooting.  Sounds like there might be a short somewhere?  FSM is pretty good at helping you pinpoint (sort of) where the short might be coming from.  I went through it on my wife's 02 Maxima and spent a week or so looking for various codes when it turned out to be the damned ECU not screwed in tight from troubleshooting OTHER codes previously!

From: se-r-bounces at se-r-list.org [se-r-bounces at se-r-list.org] On Behalf Of Darren Calbero [DarrenC at ampartners.com]
Sent: Tuesday, March 16, 2010 2:28 PM
To: se-r at se-r-list.org
Subject: 02 Circuit

Hi all,

Anyone know what an o2 circuit is?  My father-in-law's 98 Maxima is giving this off as an error via my OBD reader.  It previously said o2 sensor which I replaced, now this.  Any help would be much appreciated.

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