I am checking items I have left after my engine install and i opened my exhaust. It only has 2 bungs in the x pipe and nothing in the headers. Do need to have another bung welded in for a Wideband or do I just substitute one of my 02 sensors? Does it matter which bank I install in into as they are right before the x.

 

If you want to monitor your wb readings all the time then yes you need to weld another bung in. If you are keeping your cats you need to weld it in upstream of the cats. If you go single channel wb then either bank is fine. Just make sure you weld the bung in at the correct angle so as not to let water pool on the sensor.

I went with the aem xseries uego obd2 wideband because it works with hp tuners.

 

How hard was it feeding that obdII port through the firewall? You don’t have a gage right? Does the computer still see it? Not sure if the computer needs it or just really only needed for tuning.

 

I took of the half the drivers front wheel liner bolts/pins out so i could reach in and was able to feed it through the rubber grommet for the pedal. it's tight to work in but was doable. I have an aeroforce double gauge pod with the aem wb gauge and a banks obd2 idash. The factory ecu can not see it or interact with it but it doesn't need to. The AEM gauge comes with an obd2 passthrough plug that lets the hptuners module see the wb as a factory sensor though. AEM does sell a gaugeless option but i have no experience with it so i can't confirm if an obd2 gauge like the idash or hptuners can work with it. With the 0334 model of the aem wb you need to have the gauge connected for it to work in hp tuners as the gauge is the brains of it all.

If you don't want a standard 52mm gauge then balanger has a wb that has a small square meter you can hide better like behind the radio screen.

edit: the wire the comes from the wb has a small connector that goes to the gauge which is easy to fit through smaller spaces. the obd2 port passthrough plug is a seperate wire that plugs into the back of the gauge with a small but slightly different connector to make feeding it easier. Then there is a red/black 12v set of wires for power. I tapped into the 12v socket in the center console as it's a switched 12v so the gauge wont stay on all the time.

 

Curious, the banks lets you piggyback a second gauge, is there anyway to steal power from that jumper? Looking to add a WB to my FBO setup... How do tuners even tune without them? A tailpipe sniffer?!

 

I'm not sure if it's a data only port or if it'll supply power too.

Yes mainly sniffers or some will pull a narrow band o2 out as you disable them so the ecu isn't trying to make changes to fueling at the same time as you.

 

I ended up going with a AEM wideband that has the OBDII connector. The power is actually way more easier than I thought. I pulled power from the rear fuse box. Fuse 37 is ignition controlled. I ran my ground to the battery and tucked them underneath the plastic trim in back. I ran it under the door sill and up the from to a pod gage pilar. Not sure if you are going to run the gage behind your stereo. I probably would have used the cigarette lighter then. I dont know if a tuner would tune without a wideband.

 

Mine was tuned without a wide band, tbh all the shops I've seen around here, their FBO packages don't include widebands so I'm assuming they're all using sniffers in the tailpipe. I'm going to get an AEM as well and go back for another revision just to dial it in better. I have ARH long tubes with a catted x-pipe, I'd have to guess the tailpipe sniffer is anything but precise for that.

 

Either a sniffer or they pop one into the one of the front o2 bungs. When tuning you disable the o2s so the ecu isn't making changes