How many O2 sensors??????
Thread Starter
Pro
Joined: Apr 2002
Posts: 605
Likes: 0
From: Outer Banks NC FIRST IN FLIGHT
How many O2 sensors??????
I don't want to sound dumb, but what is the exact count of O2 sensors on a 95 LT1? I have read posts that mention sensor's or replace all the sensors, so I am really confused. I only know of the one on the left exhaust pipe. Are there others?
Thanks.
Thanks.
Drifting
Joined: Mar 1999
Posts: 1,931
Likes: 1
From: Norcross GA
Re: How many O2 sensors?????? (Kizmo)
If you didn't know, 95 is an odd year. It is part OBD1, part OBD2.
OBD1 engines have at least one.
OBD2 engines will have at least 2. 3 would be typical, on a V8.
I'll wait for another 95 owner to chime in.
OBD1 engines have at least one.
OBD2 engines will have at least 2. 3 would be typical, on a V8.
I'll wait for another 95 owner to chime in.
Le Mans Master
Joined: Oct 1999
Posts: 9,713
Likes: 3
From: Sachse Texas
Cruise-In I Veteran
Cruise-In II Veteran
Re: How many O2 sensors?????? (ZylaRace)
'92-93 LT1 Engines have two, one before each catalytic convertor - 1 wire type
'94-95 LT1 have 3, one on drivers side pre-cat, two on passengers side before and after cat. Only the front ones are truely functional and the rear one can be simply unplugged without a code or any other effect. 4 wire heated O2 sensor.
'96 LT1/4 has 4, one before and one after each of the cats. The rear ones can be bypassed with O2 sims. 4 wire heated O2 sensor.
'94-95 LT1 have 3, one on drivers side pre-cat, two on passengers side before and after cat. Only the front ones are truely functional and the rear one can be simply unplugged without a code or any other effect. 4 wire heated O2 sensor.
'96 LT1/4 has 4, one before and one after each of the cats. The rear ones can be bypassed with O2 sims. 4 wire heated O2 sensor.
Racer
Joined: Apr 2003
Posts: 304
Likes: 0
From: Tulsa OK
Re: How many O2 sensors?????? (Vette92)
On the 96's will sims have any effect on performance or milage?
where can I buy sims?
My car has 95k miles and seems to lose milage lately and with o2 sensors costing about $50 each it can get expensive replacing all 4
where can I buy sims?
My car has 95k miles and seems to lose milage lately and with o2 sensors costing about $50 each it can get expensive replacing all 4
Le Mans Master
Joined: Oct 1999
Posts: 9,713
Likes: 3
From: Sachse Texas
Cruise-In I Veteran
Cruise-In II Veteran
Re: How many O2 sensors?????? (Trey96LT1)
If I were you, I would just replace the front ones. The rear ones are only for checking to see if the cats are working. I think sims are around $200 and are generally used only for those running without cats to fool the computer.
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