Cthulu

First, what 0-5V O2 sensors do you HP tuner guys like most?

Second, where in the exhaust do you place them to get the best reading?

Third, how do you know when they go bad? Do you regularly replace them?

Cthulu

Really?

1987firechicken

1. I'm not getting into this one. There are all kinds of different widebands that will work and it depends on what you want (cheap,accurate,easy install, permanant or temporary mount). There is a thread a few pages back with a poll about the "best" wideband that is many pages long so another "best wideband" thread isn't needed, kinda turn into a flamewar after a while. It's pretty hard to go wrong with any of the widebands in that thread. Sorry but this question gets asked every week here so they usually go unanswered.

https://ls1tech.com/forums/pcm-diagn...sion-poll.html
https://ls1tech.com/forums/pcm-diagn...-wideband.html

2. This is another debatable question. Some say they like heat some say they like to not get too hot. I took the not so hot approach and put it back 5-10 inches from my narrowbands in the headers. If you have cats they need to be before them though. Just try to keep it mounted between 10 and 2 on the pipe to keep water/condensation off the sensor.

3. This depends on a few things. On a stockish car they can possibly last years unless you luck into a crap sensor or screw up the install. They are cut short when you run leaded fuel, run too hot, wire it wrong, or mount it to where water can get at it. My LC1 has lasted over a year now with no problems.

Cthulu

Thanks for the tips, the 10 and 2 placement makes a lot of sense. I'll read through the links you posted as well, I'm new to wideband tuning and fuel injection and am excited to learn.

Old Geezer

iTrader: (3)

Some interesting reading material:
http://www.paceperformance.com/pacep...ndshootout.pdf

sargie26

Ok I currently have my wideband installed. I have single exhaust. I wanna do true duals. can I put the wideband into one side and still get an true reading? or... do I need a dual wideband sensor setup?

Cthulu

According to what I've read above and other places on this forum you can get away just fine with one in the passenger side for the ls1 setups. If you think about it both sides will be the same unless you have a misfire or bad plugs.

Thanks again for the links.

Old Geezer

iTrader: (3)

Put bungs in both sides. Swap the WB to check the performance of each side.
DO NOT assume that because 1 side is GTG, the other is also OK.

99_SS_LS1

iTrader: (4)

Agreed.

I would move the wideband from one bank to the other. I don't see a need to run a wideband on both banks simultaneously.

I would be willing to bet that there is more variation of a/f from cylinder to cylinder than there is from bank to bank.

2002_Z28_Six_Speed

iTrader: (19)

There is no reason to monitor both banks for anything other than diagnostic reasons.

If there is a serious problem from side to side you are going to know just from how the car runs.