Pennzoil - SN Plus and 0W-16 Q&A

Click here to participate in the Pennzoil Q&A

Recent Topics
Oil Filter That Hasn't Been Changed In 3 Years
by BlueOvalFitter
03/18/18 02:44 AM
by dishdude
03/18/18 02:28 AM
Control Arm Bushings Bad?
by RoGuE
03/18/18 01:36 AM
Free Pizza, April 2, 2018....
by mattwithcats
03/18/18 12:15 AM
Low mileage seven year old tires
by Corollaman
03/17/18 11:31 PM
Mobil 1 UOAs showing more wear?
by mbacfp
03/17/18 10:35 PM
2011 Silverado work truck 6000 miles
by Corollaman
03/17/18 10:25 PM
PP Practically Free at O'Reilly
by John_K
03/17/18 10:22 PM
Toyota oil filter cartridge assembly
by pda1122
03/17/18 10:14 PM
Carrying IWB 1911 vs Glock 19
by lukejo
03/17/18 09:01 PM
Broken stuff this weekend - great service 'though.
by Shannow
03/17/18 08:57 PM
Denso Air and Cabin Filters?
by maverickfhs
03/17/18 08:41 PM
Sticky door latch 2nd generation Golf
by vavavroom
03/17/18 08:35 PM
7$ for a quart of Conventional Oil
by Emanuel
03/17/18 08:03 PM
Walmart Auto Service - Rant
by Warstud
03/17/18 07:47 PM
Who has a GOOD particle counter?
by Linctex
03/17/18 07:41 PM
Pretty impressed non ethanol fuel yard equipment
by ARB1977
03/17/18 06:28 PM
Did the Admin Really Just Offer an Opinion as Fact
by e55amgbenz007
03/17/18 06:27 PM
Dead F150
by ridgerunner
03/17/18 05:58 PM
Car salesmen......Talk to me!!!
by renegade_987
03/17/18 05:31 PM
Newest Members
glitch666, A76, 3one7, Lubrizol, bdunigan
64486 Registered Users
Who's Online
24 registered (4ever4d, Char Baby, 4WD, Boczech, BlueOvalFitter, billt460, 2 invisible), 738 Guests and 102 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
64486 Members
68 Forums
279985 Topics
4673303 Posts

Max Online: 3590 @ 01/24/17 08:07 PM
Donate to BITOG
Topic Options
#4563483 - 11/03/17 11:01 PM O2 sensor screen shots.
Iowegian Offline

Registered: 01/05/17
Posts: 268
Loc: Iowa
2011 Equinox 2.4l. Just had the rings and pistons replaced courtesy of GM.
My downstream o2 sensor used to run at .8 volts and was very steady. Now it looks like this. Yes car was warmed up.

Catalytic converter is still under warranty and in fact GM extend the warranty out.

No codes so I'm guessing that it's starting to go but not bad enough yet for a code.

Or maybe everything is fine???

2011 Equinox, 2.4l
2009 Sienna, 3.5l

#4563553 - 11/04/17 02:48 AM Re: O2 sensor screen shots. [Re: Iowegian]
Superflop Offline

Registered: 07/01/09
Posts: 369
Loc: Seattle
Yeah i would think its on its way out also. .8 and .2 are a bit out for switching voltage (from ruch to lean) .6 and .3 being closer to what you want.
2002 saab 9-5 2.3t wagon
2014 dodge grand caravan magnatec 5w-20

#4563634 - 11/04/17 07:20 AM Re: O2 sensor screen shots. [Re: Iowegian]
Iowegian Offline

Registered: 01/05/17
Posts: 268
Loc: Iowa
I was looking at the downstream sensor (green line). It's starting to switch too much and is following the upstream sensor (red line).

I thought the upstream is supposed to switch between .1 and .8 ish
2011 Equinox, 2.4l
2009 Sienna, 3.5l