State69champ

iTrader: (5)

I'm having trouble finding o2 sims for my car.. I have a 95 z28 with obdI and all the ones I find are for obdII...I dont know if they will still work... so please help me out.

MEAN LT1

iTrader: (2)

You can either buy the sims or you can have them programmed out. IF you have access to tunercat or edit i can send you file with them out.

State69champ

iTrader: (5)

ok so what you are saying is that the ones for a obdII will work?

94z28L

iTrader: (4)

wait, i didnt think that a obdI car has the after cat O2's?

sleeperMULLET

iTrader: (4)

o2 sims are for the after cat o2 sensors

State69champ

iTrader: (5)

they dont ,but there is one

State69champ

iTrader: (5)

oh... so i have to buy a new one.....ok good to go.

94z28L

iTrader: (4)

yeah im confused now because i didnt think that the after cat o2's came in until the OBDII was introduced which was each bank had its own cat and an o2 sensor before and after each cat and the o2 sims like you said were for the after cat o2 sensors, someone wanna fill me in here?

96capricemgr

iTrader: (1)

You have a pretty good handle on it.

Tghink the original poster thought he could use on e in place of a pre-cat O2 which he can't.

96z28camaro

iTrader: (1)

The rear O2's didn't come until OBD II if your 95 has a rear O2 after the cat then something has been modified because all OBD I cars only have pre cat O2's. maybe you had a super late 95 with the OBD II on it? I don't know but if it is a ture 95 OBD I then it shouldn't have post cat O2's

buffman

iTrader: (9)

for the poster, it's already been stated; you cant use 02 sims on a obd1 car because you have no after cat 02s..

sbs

iTrader: (1)

94-95 LT1 vettes (OBD1) have one rear O2. I thought some 95 (OBD1) LT1 F-bodies did also.

But you don't need sims for them. They won't set the SES light if removed.

Formula350

iTrader: (3)

But wouldn't they change performance and AFR? That's what the reason for getting one is, from what I understood. Who cares if it triggers SES lol

sbs

iTrader: (1)

Not setting codes is the only reason to use sims. You're completely clueless, lol.

94z28L

iTrader: (4)

ah burn

97Formy

Pre cat o2's can effect the AFR not the after cat o2's.