o2sensor simulator

[mg5542]

s there anyhing availale fra traillazer with 4.2

[Jman423]

WHAT??? :confused:

[sallen]

i think i am lost on this one

shay

[MoJoe]

My guess would be that most O2 sims for GM's may work. Unless someone rings in with an answer, you may want to ask a shop. Good luck. :)

[Vince]

What do you need one for? Are you removing the cat?

[philba1111]

Trust me from experience, I bought a high flow cat and needed an o2 simulator. I found it after a little googleing. I problems I had were not fun. I would highly recommend you stick with the original cat. First I needed two simulators one in front of the cat and one in back. After about 2 months the ses light came back reading the same code as prior to the simulator. They say it is possible to trick the computer, but it is not. On top of that, your computer will automatically start to burn richer, after time, it will start to eat at your exhaust system. If you do not heed my advice, please remember to hold onto the original cat, it cost me 550 to replace. And when you disassmble it, remove the whole pipe from engine to muffler. DO NOT cut just the cat out. Again a piece of advice from experience. Good luck to you.

PS. The high flow cat, didnt make a noticible difference

[Laloosh]

spark plug anti fouler thing works wonders bro. screw that into the o2 bung, then scrwe the o2 sensor into the anti fouler. This will still make the o2 work, but it will remove it from the direct exhaust flow, making the ecu think everything is alright. Either that or you can order a casper o2 sim and do a lil splicing. It really straight foward.

[AZLS1]

Trust me from experience, I bought a high flow cat and needed an o2 simulator. I found it after a little googleing. I problems I had were not fun. I would highly recommend you stick with the original cat. First I needed two simulators one in front of the cat and one in back. After about 2 months the ses light came back reading the same code as prior to the simulator. They say it is possible to trick the computer, but it is not. On top of that, your computer will automatically start to burn richer, after time, it will start to eat at your exhaust system. If you do not heed my advice, please remember to hold onto the original cat, it cost me 550 to replace. And when you disassmble it, remove the whole pipe from engine to muffler. DO NOT cut just the cat out. Again a piece of advice from experience. Good luck to you.

PS. The high flow cat, didnt make a noticible difference

Why did you use an O2 sim in front of the cat???
I imagine that is why you didn't see any improvement. The comp makes adjustments based on what the 1st o2 is reading, it needs to know what is actually happening before the cat. The one after (2nd o2 sensor) is just there to make sure that the cat is installed and working.

[02redhawk]

Why did you use an O2 sim in front of the cat???
I imagine that is why you didn't see any improvement. The comp makes adjustments based on what the 1st o2 is reading, it needs to know what is actually happening before the cat. The one after (2nd o2 sensor) is just there to make sure that the cat is installed and working.


Exactly. You should never have installed, nor needed, a sim placed in front of the cat. If you got an SES for for the front O2, you should have replaced it with a new GM / Bosch / NGK / etc. unit.

Sims are ONLY used for the 2nd O2 sensor, for the reason as stated by AZLS1.

Back to the original question, I have a few extra O2 sims lying around, if you do need one. I will have to check if they're the correct connector, though. They're from my GTP and Firehawk, which if memory serves, are both of the square 4-pin design.