O2 sensor question
Thread Starter
Drifting
Joined: Oct 2004
Posts: 1,664
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From: Sonoran Desert of Arizona
O2 sensor question
I went to the local Chevy parts store to get a new O2 sensor. They said my 87 has 3 of them 
And they aren't cheap either.
If this is true , where are the 3 of them located?
Everything I read says to replace the O2 sensor (singular) and doesnot refer to there being 3 of them, which makes me all the more confused than I normally am.
Thanks for the help!
And they aren't cheap either.
If this is true , where are the 3 of them located?
Everything I read says to replace the O2 sensor (singular) and doesnot refer to there being 3 of them, which makes me all the more confused than I normally am.
Thanks for the help!
Thread Starter
Drifting
Joined: Oct 2004
Posts: 1,664
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From: Sonoran Desert of Arizona
fyi, I was standing there looking at the fiche at the same time as the parts person, it definatley showed the car using one of one number and 2 of another number. I will go back and have them print the screen, scan it and post it so all can see that GM thinks they put 3 sensors on the 87 L98!
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Race Director
Joined: Jan 2004
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From: Bergen County, NJ
Originally Posted by 65Z01
Do NOT return to that parts guy; your '87 has one O2 sensor in a bung in the left side of the front Y pipe..
Thread Starter
Drifting
Joined: Oct 2004
Posts: 1,664
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From: Sonoran Desert of Arizona
The print out says where they are located, the mystery 2 are in the Y-pipe area of the exhaust manifold. Which we know is not true.
What I wonder is why you guys think that every parts man that can read the parts book correctly should also know every detail about every car?
They aren't a mechanic who actually works on the car.(and we know the mechanics in general dont know much)
The parts person is trained to use the fiche and get the correct part based on what GM has on the fiche.
IF the parts man has had any dealing with a certain part that is incorrect, they usually remember it and know in the future. But again there is know way they can know every detail on every car. especially if they are a full line GM parts warehouse.
My parts man is not a man, she is my sister-in-law who gets me very good pricing on gm parts. She has been doing GM parts for 14 yrs and is very competant. She had never had a call for the O2 sensor for an 87 before I asked for one, and she went exactely by the fiche. Upon returning to her, we again looked it up, she printed out the above page for me, and dam as she tried the fiche(actually a pc) would not link to a location detail for the mystery sensors. It just shows the one located on the left side.
Cant blame this on anyone other than the General himself.
What I wonder is why you guys think that every parts man that can read the parts book correctly should also know every detail about every car?
They aren't a mechanic who actually works on the car.(and we know the mechanics in general dont know much)
The parts person is trained to use the fiche and get the correct part based on what GM has on the fiche.
IF the parts man has had any dealing with a certain part that is incorrect, they usually remember it and know in the future. But again there is know way they can know every detail on every car. especially if they are a full line GM parts warehouse.
My parts man is not a man, she is my sister-in-law who gets me very good pricing on gm parts. She has been doing GM parts for 14 yrs and is very competant. She had never had a call for the O2 sensor for an 87 before I asked for one, and she went exactely by the fiche. Upon returning to her, we again looked it up, she printed out the above page for me, and dam as she tried the fiche(actually a pc) would not link to a location detail for the mystery sensors. It just shows the one located on the left side.
Cant blame this on anyone other than the General himself.
Burning Brakes
Joined: Apr 2004
Posts: 810
Likes: 1
From: Las Vegas NV
Originally Posted by Ibuyvettes
LT1 and LT4 have three. 
L83, 85 - 90 L98 Has one O2 sensor
91 L98, 92-93 LT1 Has two O2 sensors
ZR1 Has two O2 sensors
94 - 95 LT1 Has three O2 sensors
96 LT1, LT4 and LS1 Has four O2 sensors
According to "Corvette Fuel Injection and Electronic Engine Management 1982 to 2001 L83, L98, LT1, LT4, LS1, LS6, ZR-1" by Charles O. Probst
Chapter 4, Page 78, Table 4-2 Corvette Oxygen Sensors
Team Owner
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From: Fort Knox, KY
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Originally Posted by RIISITAS
If my reference is correct....
L83, 85 - 90 L98 Has one O2 sensor
91 L98, 92-93 LT1 Has two O2 sensors
ZR1 Has two O2 sensors
94 - 95 LT1 Has three O2 sensors
96 LT1, LT4 and LS1 Has four O2 sensors
According to "Corvette Fuel Injection and Electronic Engine Management 1982 to 2001 L83, L98, LT1, LT4, LS1, LS6, ZR-1" by Charles O. Probst
Chapter 4, Page 78, Table 4-2 Corvette Oxygen Sensors
L83, 85 - 90 L98 Has one O2 sensor
91 L98, 92-93 LT1 Has two O2 sensors
ZR1 Has two O2 sensors
94 - 95 LT1 Has three O2 sensors
96 LT1, LT4 and LS1 Has four O2 sensors
According to "Corvette Fuel Injection and Electronic Engine Management 1982 to 2001 L83, L98, LT1, LT4, LS1, LS6, ZR-1" by Charles O. Probst
Chapter 4, Page 78, Table 4-2 Corvette Oxygen Sensors
