need some advice. What’s my best recourse. 2005 GMC Yukon Denali. Removed front driveshaft to drill hole for wideband. Stupid me didn’t account for driveshaft clearance now driveshaft is hitting wideband sensor. That driverside area is already tight as it is. I used a no-weld clamp for simplicity. Here are my options:

1. start over with new mid pipe and weld bung correctly but too expensive, risk exhaust leaks and breaking bolts taking out old mid pipe.

2. put wideband on passenger side and tape up drivers side hole.

3. put wideband after cat on drivers side.

what’s my best most logical option?

 

Drill hole? What holes did you need to drill?

 

drilled a hole to install my wideband o2 sensor

 

Yeah but where did you drill the hole? You made it sound like you drilled it in the floor pan or something lol

If it is in your mid pipe just weld it back up and move where you put it. I suggest going up the driver side along the frame rail and through the grommet in the firewall

 

Wideband needs to read both sides, unless you have 2 sensors. The sensor; regardless of what you want to do- needs to be installed on the passenger side 8-12" after the exhaust has merged

don't forget to angle it downward (wires pointed upward) to prevent condensation from accumulating on sensor tip

 

If you can't weld it put a clamp on it with some foil tape and move it where it can properly evaluate what's flowing out of the engine. Otherwise it's a waste of energy and resources. No big deal though a clamp and foil would seal it up well.

 

I never put a wideband after the merge, you have to have two separate sensors if you want to read both banks. You risk getting skewed readings with the sensors that far back and you'd really never be able to tell what bank is giving you the issue.

Yes it's a minor risk only having it on one bank but so long as both banks have no leaks or other issues bank to bank the single bank the wideband is install should be just fine.

I've had my wideband sensor in the rear hole after the cat on my 2016 truck for probably 2 years now, it reads very accurate under enough throttle/airflow. I wouldn't obviously attempt to do lots of idle tuning with it after the cat because that's when the cat will skew the data a little bit. But for medium to wide open throttle the cat ain't doing enough to mess with my data.

 

so if you guys only has two options to mount your wideband, which one of the two would you pick? What’s the lesser of two evils, the passenger side or driver side but after cat?

 

Passenger side and run the wire all the way over.