PLX Gauges (A/F and Boost) or ???

[dma05]

I've been looking at getting 2 PLX gauges:


1 for Air/Fuel Ratio
1 for Boost


Does the A/F Ratio module really read both NB and WB? Meaning I can put their sensor in my Kooks header and keep it in permanently and the ECU for the car will be fine since it can read it as a NB? Or am I missing something here.



Or is there a better gauge out there that can do both A/F and Boost?




I currently have the AeroForce gauge, but not a fan of the display. If anyone wants to buy it from me, $300 plush shipping. It's literally brand new, bought it May 28th, 2021. Comes with the silver brushed ring and an extra "SS" face plate.


Any info is appreciated.
Thanks!

[stevieturbo]

For boost, it's hard to beat a simple analogue gauge.

For wideband...there are literally dozens of options.

And as you've noted, the actual visual display can be an important choice for the end user.

[dma05]

I’m really hoping for an A/F gauge that can read both WB and NB with a single sensor.

[stevieturbo]

Originally Posted by dma05

I’m really hoping for an A/F gauge that can read both WB and NB with a single sensor.

You're not understanding how they work.

NB essentially only reads stioch and reports rich/lean either side of that.

WB reads pretty much any mixture a normal engine will operate at.

Whatever you then choose to do with that data is up to you.

[Greenhornet2]

Originally Posted by dma05

I’m really hoping for an A/F gauge that can read both WB and NB with a single sensor.

You aren't going to touch the sensors that are already in the car. When you add a A/F gauge you also add the wideband sensor into the exhaust. It won't have anything to do with how the car is reading its A/F your gauge and wideband is it's own little unit just for you to see.

[dma05]

I don’t think I’m saying what I’m teying to say. I was reading on other forums that you can use the stock bungle to put the new WB sensor in and keep it in so they gauge can read WB but it also doesn’t throw a code to the computer in the car. I’m probably just not wording it right or it can’t be done. I’m trying to avoid drilling and welding in another bungle for the new gauge.

If that isn’t possible, then I will need to take the Kooks headers out and drill a new hole.

I’m always learning and appreciate all the help that is offered on these forums.

Thanks

[CamaroCracka]

I think some gauges have an NB output that you can use for what your describing, but it comes off the gauge wiring, you don't wire into the sensor. I've never had the desire to do that, so I could not tell you how you would wire it up or if it's even possible. When I installed mine, I pulled the header and had an exhaust shop weld a bung in. It's is probably less effort that way. If you decide to have another bung installed, and you have stainless headers, you might want to bring a stainless bung with you as not all shops will have a stainless sensor bung.

[stevieturbo]

I would not be trying to feed the OEM ecu a simulated NB input from the WB controller which is what you're saying.

Rarely does it work well.

Just fit the wideband as a totally standalone device and leave the stock NB sensors etc in place. That said, if you've cats etc removed and/or are running open loop, then wouldnt worry too much about the NB sensors

[dma05]

Thanks for the quick replies! Sounds like I will be removing the header and having a new bung installed. I will make sure it's a stainless steel one.


Now to choose which gauge(s) I want to go with

[stevieturbo]

If you have only one wideband, ideally the sensor would be after any merges or pairs etc so it can read from the entire engine.

Although if stuck, just after a collector on one side would do, but you are only getting a picture of mixtures on that side, and assuming the other may be the same.

Never place a sensor in a single header tube ( unless you're doing all 8, but on a turbo setup that itself creates other caveats )

[dma05]

I was planning on installing it on the driver side at the collector just next to the current O2 bung.

[RupertPupkin]

Originally Posted by stevieturbo

For boost, it's hard to beat a simple analogue gauge.

For wideband...there are literally dozens of options.

And as you've noted, the actual visual display can be an important choice for the end user.

This.

I opted in for AWM analog/digital all in 1.