02 sensors?
Racer
Joined: Dec 2004
Posts: 377
Likes: 6
From: North West, Georgia
How would you know its giving a problem if it not throwing codes?
Ive been fighting with my 96 on milage recently ... and one of the things that i thought about was sensors .. but it seems to run fine ... and was throwing no codes.
Anyone know what the we should be seeing in autotap to confirm a known good stock engine reading?
Ive been fighting with my 96 on milage recently ... and one of the things that i thought about was sensors .. but it seems to run fine ... and was throwing no codes.
Anyone know what the we should be seeing in autotap to confirm a known good stock engine reading?
Le Mans Master
Joined: Jan 2003
Posts: 8,596
Likes: 19
From: Portland Oregon
Originally Posted by seering
How would you know its giving a problem if it not throwing codes?
Ive been fighting with my 96 on milage recently ... and one of the things that i thought about was sensors .. but it seems to run fine ... and was throwing no codes.
Anyone know what the we should be seeing in autotap to confirm a known good stock engine reading?
Ive been fighting with my 96 on milage recently ... and one of the things that i thought about was sensors .. but it seems to run fine ... and was throwing no codes.
Anyone know what the we should be seeing in autotap to confirm a known good stock engine reading?
In AutoTap or some other more advanced scan tools you can graph the o2 sensor activity. If you have two sensors and all OBD2 and most OBD1 compliant strategy PCMs do, you can overly that two sensor graphs on top of each other so you can compare them. If one sensor is lazy you can see it.
Team Owner
Joined: Sep 2001
Posts: 62,157
Likes: 1,731
From: Athens AL
C7 of the Year - Unmodified Finalist 2021
C4 of Year Finalist (performance mods) 2019
Only way you'll know is by the gas mileage, to tell the truth.
Mine dropped to 20-22 hwy, and then I replaced it because as far as i knew it was the original O2 sensor, afterwards it was 24-25 hwy.
Mine dropped to 20-22 hwy, and then I replaced it because as far as i knew it was the original O2 sensor, afterwards it was 24-25 hwy.
Instructor
Joined: Aug 2003
Posts: 139
Likes: 0
From: South Cave, Brough East Yorkshire
re: o2 sensors
Hi.
Yeah my 86 is getting bad on mileage too and seems to b running real rich. I`ve also noticed its now real sluggish at moderate part throttle - like say 3/4 throttle, compared to full throttle. No codes either.
Are those universal o2 sensors just as good or do i need an original equipment one?
Yeah my 86 is getting bad on mileage too and seems to b running real rich. I`ve also noticed its now real sluggish at moderate part throttle - like say 3/4 throttle, compared to full throttle. No codes either.
Are those universal o2 sensors just as good or do i need an original equipment one?
Le Mans Master
Joined: Feb 2002
Posts: 7,858
Likes: 2
I would get OE type or cross reference to OE match in Denso brand name. Denso O2 sensors are supposed to be the schiznit. There's a product review on Denso O2's in the forum reviews section, or at least there used to be.
Edit: Here's the link to the forum member submitted product review on Denso Oxygen Sensors for Corvette application. He used them in his ZR1:
http://forums.corvetteforum.com/revi...7&cat=2&page=5
Edit: Here's the link to the forum member submitted product review on Denso Oxygen Sensors for Corvette application. He used them in his ZR1:
http://forums.corvetteforum.com/revi...7&cat=2&page=5
Last edited by Lone Ranger; Apr 28, 2005 at 10:03 PM.
Le Mans Master
Joined: Feb 2002
Posts: 7,858
Likes: 2
P.S. to anyone who is going to change out O2's on an LT1 and maybe this applies to L98's too, I don't know. I found the best tool for the job to be the Craftsman 7/8" Stubby Wrench. You cna get on the driver side O2 with a standard length 7/8" wrench, but the passenger side one, at least on an LT1 or LT4, you need the shorter stubby length wrench to clear obstacles or else you can't get enough turn on it. W/ the stubby you can turn it about 1/3 or 1/4 turn at a time.
This is working underneath the car with the wheels up on ramps, etc. can't get to the O2's from above (LT1, LT4)
This is working underneath the car with the wheels up on ramps, etc. can't get to the O2's from above (LT1, LT4)
Last edited by Lone Ranger; Apr 28, 2005 at 10:12 PM.
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