redid exhaust today, noob question inside..

TylerC161 · 10-24-2005, 05:29 AM

Okay, so, today, i got 2 3/8" pipe and ran it from the downpipe back. no cat involved, just the pipe, then my muffler. It seems a little better in 4.5k plus rpm, but, my question is, should i reset the computer? Or will not resetting my ecu do anything.. because i know they reccomend it with new intakes, so i thought exhaust might be the same

Sleeper SL2 · 10-24-2005, 05:42 AM

You can do it.. but i highly doubt it will do anything for engine performance. Maybe if you changed you 02 sensor(s) or something i could see doing it then.

TylerC161 · 10-24-2005, 05:52 AM

Quote:

Originally Posted by Sleeper SL2

You can do it.. but i highly doubt it will do anything for engine performance. Maybe if you changed you 02 sensor(s) or something i could see doing it then.

well, i dont have my cat on, so the rear o2 is unplugged as of now. i dont know what this is doing with it unplugged to my computer/whatever.. but if you think its a good idea to plug it in, i will...

and what do you mean by changing them?

PurdueGuy · 10-24-2005, 05:58 AM

plugged, unplugged, either way the computer is going to throw a hissy fit.

TylerC161 · 10-24-2005, 06:00 AM

Quote:

Originally Posted by PurdueGuy

plugged, unplugged, either way the computer is going to throw a hissy fit.

iv had it off all weekend, still havent thrown a code

Sleeper SL2 · 10-24-2005, 06:04 AM

Quote:

Originally Posted by TylerC161

Quote:

Originally Posted by Sleeper SL2

You can do it.. but i highly doubt it will do anything for engine performance. Maybe if you changed you 02 sensor(s) or something i could see doing it then.

well, i dont have my cat on, so the rear o2 is unplugged as of now. i dont know what this is doing with it unplugged to my computer/whatever.. but if you think its a good idea to plug it in, i will...

and what do you mean by changing them?

I meant to replace them

TylerC161 · 10-24-2005, 05:42 PM

Quote:

Originally Posted by Sleeper SL2

Quote:

Originally Posted by TylerC161

Quote:

Originally Posted by Sleeper SL2

You can do it.. but i highly doubt it will do anything for engine performance. Maybe if you changed you 02 sensor(s) or something i could see doing it then.

well, i dont have my cat on, so the rear o2 is unplugged as of now. i dont know what this is doing with it unplugged to my computer/whatever.. but if you think its a good idea to plug it in, i will...

and what do you mean by changing them?

I meant to replace them

replace with new? or what. Your kinda vague

Schizzo97SC2 · 10-24-2005, 06:20 PM

possibly one of these

www.o2simulator.com

you can try to reset the PCM, it will remap for idle and such, and might help out minimally, but couldn't hurt. Every little bit helps.

Sleeper SL2 · 10-24-2005, 06:28 PM

Yea the o2 simulators are great, but i was referring to replacing it with another stock o2 sensor.

Schizzo97SC2 · 10-24-2005, 06:52 PM

Quote:

Originally Posted by Sleeper SL2

Yea the o2 simulators are great, but i was referring to replacing it with another stock o2 sensor.

oh my bad, it still will throw a code and SES light for faulty cat though, might as well bypass it so the light will come on only when something goes wrong that isn't intentional.