brokeLS1owner

iTrader: (1)

my cars been stumbling around 2500 rpms and then picks back up at like 3000. i also have a code for an 02 sensor and i think thats the problem. i have the two rear 02 sensors because i had them tuned out and didnt reinstall them in the new y pipe. my question is, can i install the rear o2s in the front instead of buying new ones? theyre all the same right?

Beasst8

iTrader: (1)

They ARE interchangable... so go for it. Your O2 sensors are shot!! So seeing the cam you have (did you just change it), my husband and I did the same thing after we installed the MS4. Problem was solved. Hope this helps!!

LS1CALIBOY

iTrader: (13)

I'm havin the same problem but its because I melted the O2 ext wire on my header, should go away once i replace it!

brokeLS1owner

iTrader: (1)

alright thanks for the help

98blackbirdta

iTrader: (7)

Do it quick man cuz I didn't know both my o2s where out and I drove my car like that for a while and now my long term fuel trims are messed up

brokeLS1owner

iTrader: (1)

what do u mean fuel trims? because ive been driving it like that for quite awhile now and just realized what it was. what did u have to do to fix the problem?

elias_799

iTrader: (8)

^^ you have to get the car properly tuned

98blackbirdta

iTrader: (7)

Yea you have to get ur car tuned afterwords, but might as well

brokeLS1owner

iTrader: (1)

well i have a mail order tune from frost with free updates still i beleive, would a retune fix the problem?

lemons12

iTrader: (71)

a retune will not fix the problem.. but i would suggest getting one.. chances are your running rich.

your o2s are shot..


if i were you i would sell the extensions (assuming you have some) and go to autozone and buy vette o2s.. not only do they work better with LTs but you dont have to have the extension either (which many people have problems with)..

they are like 120 or something for a pair IIRC.. been a while..