94-96 exhaust the same?
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From: Dallas TX
94-96 exhaust the same?
94-96 exhaust is the same, correct?
(Specifically the 94 & 96 here)
The only thing I can think of that would make them different would be because of OBDII, somewhere the '96 might have an extra spot for the second O2.
[Modified by Glock'94, 1:53 PM 6/7/2002]
(Specifically the 94 & 96 here)
The only thing I can think of that would make them different would be because of OBDII, somewhere the '96 might have an extra spot for the second O2.
[Modified by Glock'94, 1:53 PM 6/7/2002]
Pro
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From: Wilmington NC
Re: 94-96 exhaust the same? (Glock'94)
'96 does have a spot for an O2 sensor behind the passenger cat, I believe. My flowmaster system came with an open hole for this. My '95 doesn't have a sensor there, so the shop just plugged up the hole with a bolt. Shouldn't be a problem to put a '96 system on a '94 so long as you plug that hole. That's my experience, at least.
Dave
Dave
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From: Dallas TX
Re: 94-96 exhaust the same? (Dave95C4)
Actually, someone with a '96 wants to buy my old system. So a hole would have to be made.
The '94-'95 have the O2 spot after the cat on the passenger side, but we don't have one after the cat on the driver's side. Is this what you're referring to?
The '94-'95 have the O2 spot after the cat on the passenger side, but we don't have one after the cat on the driver's side. Is this what you're referring to?
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Re: 94-96 exhaust the same? (Glock'94)
Hmmmm.... you know, that's weird. You're the second person to tell me that the '95 has an O2 sensor on the passenger side behind the cat. Actually, the first person just 'thought' he had an O2 sensor there. Are you sure the '95 has an O2 sensor behind the cat on the Passenger side? If so, mine lacks that sensor for some reason. I bought my Flowmaster system from a guy with a '94 who had the system installed for him. I thought maybe his installer had just put on a '96 system by accident when I saw that it had a spot for an O2 sensor behind the passenger side cat and my stock exhaust did not.
That's really odd..... As an aside, my car has the NY specification front/rear impact option, but not the NY emissions option. I thought that was weird as well.
[Modified by Dave95C4, 3:43 PM 6/7/2002]
That's really odd..... As an aside, my car has the NY specification front/rear impact option, but not the NY emissions option. I thought that was weird as well.
[Modified by Dave95C4, 3:43 PM 6/7/2002]
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Re: 94-96 exhaust the same? (Glock'94)
The 02 sensor resides on the drivers side behind the cat of my '96. I would think any decent muffler shop could weld a bung fitting on for a few bucks. :cheers:
[Modified by Hardcorvette, 3:43 PM 6/7/2002]
[Modified by Hardcorvette, 3:43 PM 6/7/2002]
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Re: 94-96 exhaust the same? (Dave95C4)
Well, '94 & '95 both have the OBDI - OBDII hybrid computers. The hybrid computers are supposed to have 3 O2's connected to them. I KNOW my '94 has the O2 behind the passenger cat. I replaced both O2's before the cats, but didn't touch the one behind on the passenger side. It does absolutely nothing. My cats are gutted and it did nothing to my computer.
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From: Dallas TX
Re: 94-96 exhaust the same? (Hardcorvette)
The 02 sensor resides on the drivers side of my '96. I would think any decent muffler shop could weld a bung fitting on for a few bucks. :cheers:
Pro
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From: Wilmington NC
Re: 94-96 exhaust the same? (Glock'94)
Now I'm really wondering... Why don't I have an O2 sensor behind the passenger side cat? I'd understand if my stock exhaust had a place for an O2 sensor that had been removed...but there was none. :confused:
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From: WilkesBarre PA
Re: 94-96 exhaust the same? (Dave95C4)
Dave95C4, My 95 had 3 O2's as well. you should look under the car for another plug from the O2 that is not there. It should be there. If the computer was reprogramed to ignore the third sensor you shouldn't need it.
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Re: 94-96 exhaust the same? (RichS)
Nope...there's no O2 sensor behind the cat. I pulled my stock exhaust system out of storage this weekend and there's no place for a 3rd O2 sensor. I thought maybe I just didn't find it during the cat-back change, but there was not even a place for an O2 sensor in my stock system. Am I misunderstanding and the O2 sensor is somewhere in the line before the cat-back connects to the pipes exiting the converters?
Thanks for helping to clear up this mystery....
Dave
Thanks for helping to clear up this mystery....
Dave
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From: Dallas TX
Re: 94-96 exhaust the same? (Dave95C4)
the driver's side is going to be in the detachable part of the cat back (i think) .. the passenger side is going to be on the cat piece right after the cat.
Pro
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From: Wilmington NC
Re: 94-96 exhaust the same? (Glock'94)
the driver's side is going to be in the detachable part of the cat back (i think) .. the passenger side is going to be on the cat piece right after the cat.
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Re: 94-96 exhaust the same? (Dave95C4)
'94's have 3 O2's, that's why :D. The OBDII '96's have FOUR of them :eek: :eek: . When I redid my engine, i just changed out the two before the cats .. didn't bother with the one after my passenger cat. It's not used for calculations.
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From: Dallas TX
Re: 94-96 exhaust the same? (Dave95C4)
Still, I wonder why the '94 Flowmaster system I have on my '95 has an opening for an O2 sensor on the passenger side?
[Modified by Glock'94, 10:39 AM 6/10/2002]
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From: Exit 89 GSP,Lakewood,NJ The Land Of Mojo
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Re: 94-96 exhaust the same? (Glock'94)
Here's the ticket, and RichS Should be able to verify this.(about the LT4) The 96 LT1 should be the same as the 93-95 except for the 4th O2 sensor. I now have a '95 exhaust on my '93.
Now the 96 LT4 should have the 4 O2 sensor bungs as well as an "H" pipe or crossover. I saw it on another Grand Sport. Other than that, there shouldn't be no reason why you couldn't use it.
Now the 96 LT4 should have the 4 O2 sensor bungs as well as an "H" pipe or crossover. I saw it on another Grand Sport. Other than that, there shouldn't be no reason why you couldn't use it.
Burning Brakes
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Re: 94-96 exhaust the same? (Glock'94)
Well, '94 & '95 both have the OBDI - OBDII hybrid computers. The hybrid computers are supposed to have 3 O2's connected to them. I KNOW my '94 has the O2 behind the passenger cat. I replaced both O2's before the cats, but didn't touch the one behind on the passenger side. It does absolutely nothing. My cats are gutted and it did nothing to my computer.
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From: Stafford, Virginia Kittah, Kittah, Kittah...
Re: 94-96 exhaust the same? (Mr Mojo)
Here's the ticket, and RichS Should be able to verify this.(about the LT4) The 96 LT1 should be the same as the 93-95 except for the 4th O2 sensor. I now have a '95 exhaust on my '93.
Now the 96 LT4 should have the 4 O2 sensor bungs as well as an "H" pipe or crossover. I saw it on another Grand Sport. Other than that, there shouldn't be no reason why you couldn't use it.
Now the 96 LT4 should have the 4 O2 sensor bungs as well as an "H" pipe or crossover. I saw it on another Grand Sport. Other than that, there shouldn't be no reason why you couldn't use it.
Now a new question is, is there a difference between federal and Kalifornia cars for the 95 MY Y-Bodies??? I know that the F-Bodies had exhaust differences in that ODB-II transition year (95), maybe the Vettes did too...