If fitting it needs to be 36 inches downstream of the turbo outlet, but before the cats (if fitted). I'll be fitting two to my test pipes soon.
Cheers Shane, was hoping fitting them in the stock o2 sensor points was OK. Buying a plx setup which sends narrow band signals to ecu.
Yeah I'd considered doing the same, but all of the manufacturers I've checked (Innovate, AEM, PLX) all recommend 36 inches. Not gunna argue, need it to work reliably :zlove:
Been using them for years..... always in the exhaust pipe. Only problem I ever had was when the harness melted on the exhaust Lots of cable ties is the secret IMHO the NB capability is just 'marketing'...... the WB sensor would have a very limited life in the manifold
Yeah TBH I've read of others fitting them in the dumps, but for long term reliability probably better to have them further downstream. Plus if you need to change one much easier than unbolting the dump at the turbo or doing an engine pull.
Actually on second read I'm confused by your post. I am suggesting installing it in the exhaust pipe, just not right up there in the dump pipes where the narrowband sensors would be installed.
Do you feel the nb signal is dodgy at 36 inch's away or that its just an added gimik? You've got me considering running stock NBS and installing the wbs further down.
Correct, in the exhaust pipe..... I was stating that the ability to access a NB signal from your WB controller is just 'marketing hype'. You already have NB sensors, why would you want to use your WB to supply a NB signal You don't need two WB's. One is sufficient ..... determine your leanest bank and tune to that side (much cheaper)
Of course that is all correct, but. If you're going to do it properly, you'll run one per bank. If you have a faulty NB sensor, or simply want to get rid of some excess crap, and you're going with dual WB anyway, why wouldn't you use this feature. It's there and it works.
This is exactly what I do. I run the PLX iMFD with the Bosch WB Sensor in each front pipe just as the pipe becomes parallel with the body. As I have found though, putting one in both sides for tuning is a waste, only good if you are trying to diagnose an issue with one side of the motor.
