Pelican Parts
Parts Catalog Accessories Catalog How To Articles Tech Forums
Call Pelican Parts at 888-280-7799
Shopping Cart Cart | Project List | Order Status | Help

Go Back   Pelican Parts Forums > 5 - Miscellaneous > Off Topic Discussions

LinkBack Thread Tools Rate Thread
Thread Post New Thread    Reply
Registered User
walt's Avatar
Join Date: Apr 2002
Location: Raleigh, NC
Posts: 453
Help With These O2 Readings

Background - this is my daughters 2001 Nissan Sentra GXE that she drove with a missfire due to a faulty ECM. I replaced the ECM and now the check engine light is on. I originally thought she fried one or both of the catalytic converters. The fault code is P0420 catalyst efficiency bank 1 but, aren't these good readings for

B1 S1 .13 to .72 VDC
STFT B1 S1 -2.3 to - 5.4%

B1 S2 .13 to .14 VDC
STFT B1 S2 99.2% (cycles between rich and lean but mostly lean)

B2 S1 .11 to .61 VDC
STFT B2 S1 -.7 to -3.1% (reads lean)

B2 S2 .12 to .16 VDC
STFT B2 S2 99.2% (cycles from rich to lean)

Can anyone advise on the condition of the O2 sensors and catalytic converters given the above info? The car has two converters and I assume the first is a precat or bank 1. Thanks for the help.

82 SC
Old 12-06-2008, 02:31 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #1 (permalink)

Thread Tools
Rate This Thread
Rate This Thread:


All times are GMT -8. The time now is 05:44 AM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2018, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2018 Pelican Parts, LLC - Posts may be archived for display on the Pelican Parts Website -    DMCA Registered Agent Contact Page

DTO Garage Plus vBulletin Plugins by Drive Thru Online, Inc.