X91EVO

iTrader: (17)

let me just start off by saying yes I searched I cant find a diagram that fits my needs..

First question the stock cat, the studs go into the cat back right? not to the downpipe? the cat doesnt show any direction of flow on it..

and second, I first had a p0141 code.. now with a new sensor,
I have a P0137 code, low voltage lean condition.. I have some pretty bad exhaust leaks because I just threw the stock cat on for emissions,
would putting on gaskets resolve this?
damn you emissions

thanks in advance for input

X91EVO

iTrader: (17)

bump for info I put the gaskets back, insured the cat is on correct and I am still getting a low voltage code

X91EVO

iTrader: (17)

sensor #2...

heavens turbo

yes, the studs for the cat go to the back, the bolts are from the downpipe side. you could be running lean before the cat, (tune or other mods?), or an exhaust leak before the rear o2 is sucking in air and tricking the o2 sensor. do you have an anti fouler? need mod list and more info please. good luck.

turbotalawd

iTrader: (11)

Just do the o2 mechanical "anti fouler" mod and be done with it.

huevosrancheros

iTrader: (14)

maybe the new sensor u put it in was no good. Check the resitance on that new sensor with a voltmeter. What type of sensor did u install buddy???? If u tell me or pm the sensor I can look it up on my FSM(full service manual) and let u know the operating range of resistance for that sensor.

X91EVO

iTrader: (17)

it was a NGK good quality sensor,
I have 2anti foulers on it, and I am beginning to wonder if the antifoulers have to do with it? because from what I know low voltage could mean it isnt detecting a cat?

heavens turbo

take the anti foulers off if you have the stock cat on. i run a turboback with the stock cat and no foulers. no codes for me.

X91EVO

iTrader: (17)

yea thats exactly what the problem ended up being.. O2 sensor has to be in the flow of the exhaust unless you have a tp
thanks