What wideband kit is best for a t2?
Thread Starter
Joined: Sep 2004
Posts: 3,706
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From: Dinwiddie, Va
I'm trying to figure out what the best kit is for my t2, so far I've come up with innovate lc-1 , or ngk afx.
I'm getting all kind of mixed opinions and research is pretty much opinion based so i don't know what's the best option.
I'd like the innovate for the price and options, but quality and accuracy is a concern.
Rotary > Pistons
I'm getting all kind of mixed opinions and research is pretty much opinion based so i don't know what's the best option.
I'd like the innovate for the price and options, but quality and accuracy is a concern.
Rotary > Pistons
Most people consider the Horiba MEXA-730 Lambda to be the best UEGO analyzer.
If quality and accuracy are a concern, then why are you looking at the cheapie units?
We both have ours permanently installed and they work great. Excellent customer service as well.
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I'm using a LC-1 and have never had problems with it (other than having to replace the sensor once, but that's not all that surprising...)
I'd recommend getting a heat sink like this for any wideband you put on a turbo rotary:
Innovate Motor Sports On-Line Store
I'd recommend getting a heat sink like this for any wideband you put on a turbo rotary:
Innovate Motor Sports On-Line Store
Joined: Mar 2001
Posts: 31,837
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From: https://www2.mazda.com/en/100th/
Thread Starter
Joined: Sep 2004
Posts: 3,706
Likes: 4
From: Dinwiddie, Va
I'm using a LC-1 and have never had problems with it (other than having to replace the sensor once, but that's not all that surprising...)
I'd recommend getting a heat sink like this for any wideband you put on a turbo rotary:
Innovate Motor Sports On-Line Store
I'd recommend getting a heat sink like this for any wideband you put on a turbo rotary:
Innovate Motor Sports On-Line Store
Rotary > Pistons
Thread Starter
Joined: Sep 2004
Posts: 3,706
Likes: 4
From: Dinwiddie, Va
Thread Starter
Joined: Sep 2004
Posts: 3,706
Likes: 4
From: Dinwiddie, Va
The wideband sensor needs to be mounted further way than the factory o2 sensor. Usually in the manual it says how far to mount it and at what angle. Maybe some can be mounted in the factory location? I don't think so though.
I would like to think if you are installing an o2 sensor it means your car isnt stock.
Usually the dp is changed, just get a bung welded in the right spot, or use one of those aem clamps
Usually the dp is changed, just get a bung welded in the right spot, or use one of those aem clamps
Thread Starter
Joined: Sep 2004
Posts: 3,706
Likes: 4
From: Dinwiddie, Va
its not stock but why can't I use the wideband for the stock ECUs reading and to.see on my wide and gauge? I'd rather not use this dp I have to get a bung welded in , I'd rather replace it.
here u can see why.
I've had to grind the welds.to.get it to bolt u.and it still needs more.grinding ..I wanna replace it but as u can see in my other pic my exhaust was ghettoed by the PO so its harder to do than it should be to replace the dp


Rotary > Pistons
here u can see why.
I've had to grind the welds.to.get it to bolt u.and it still needs more.grinding ..I wanna replace it but as u can see in my other pic my exhaust was ghettoed by the PO so its harder to do than it should be to replace the dp


Rotary > Pistons
Joined: Mar 2001
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From: https://www2.mazda.com/en/100th/
all of these wideband sensors are OE sensors to start with, so they can be mounted in the stock spot.
I've had the NGK AFX for a good while. I opted to follow the instructions and mounted it within the 12" to 36" range away from the engine. Cost me a whole 30 bucks to have an O2 sensor boss welded on which also included a plug/bolt. The sensor is a wear item and the distance away from the engine is to maximize sensor life while getting accurate (undiluted) readings. The copper thing sounds like it could work, but I haven't tried it myself.
For this application, practically any of them will do. The Innovate LC1 seems to have some heater control issues, which is why they sell that heatsink. Basically, they blame you for their shitty controller.
As for the Bosch vs NTK/NGK sensor, again you wouldn't notice the difference from the sensor itself. They all need backpressure compensation, and none of the units in question here do it, so they're all wrong.
Evil Aviator makes a good point recommending the lab-grade stuff. The Horiba unit he mentioned is going to be used among Japanese companies. American companies use an ECM or Bosch/ETAS lambda meter, and the Germans use Bosch/ETAS. Or the air fuel ratio can be calculated from a gas analyzer. Those systems cost more than most 2nd gens are even worth.
As for the Bosch vs NTK/NGK sensor, again you wouldn't notice the difference from the sensor itself. They all need backpressure compensation, and none of the units in question here do it, so they're all wrong.
Evil Aviator makes a good point recommending the lab-grade stuff. The Horiba unit he mentioned is going to be used among Japanese companies. American companies use an ECM or Bosch/ETAS lambda meter, and the Germans use Bosch/ETAS. Or the air fuel ratio can be calculated from a gas analyzer. Those systems cost more than most 2nd gens are even worth.
Thread Starter
Joined: Sep 2004
Posts: 3,706
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From: Dinwiddie, Va
With the price of the heat sink its the same price as the ngk afx.
What the best route is I still have yet to figure out, I may just get the lc1 and the heat sink later on.
I'm still on my break in period so I won't have a need to.install it.until that's over.
Rotary > Pistons
What the best route is I still have yet to figure out, I may just get the lc1 and the heat sink later on.
I'm still on my break in period so I won't have a need to.install it.until that's over.
Rotary > Pistons
PLX AFR2 with DM6 is easy and cheap
.. has soft warm up.. self cal.. will display lambda or any fuel AFR
has 5V out for your ECU logging,, and 1V out to keep factory ecus with feedback happy
.. will watchdog alarm if you wish
also integrates with other PLX devices in serial hub and can be used with software for standalone data logging
PS ..the dm6 touch screen system is pretty cool.. the trend screen display is very handy
.. has soft warm up.. self cal.. will display lambda or any fuel AFR
has 5V out for your ECU logging,, and 1V out to keep factory ecus with feedback happy
.. will watchdog alarm if you wish
also integrates with other PLX devices in serial hub and can be used with software for standalone data logging
PS ..the dm6 touch screen system is pretty cool.. the trend screen display is very handy
Last edited by bumpstart; Aug 22, 2013 at 11:57 PM. Reason: PS
Joined: Sep 2005
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From: Smiths Falls.(near Ottawa!.Mapquest IT!)
You go to the "scrap yard" often don't you?
grab a piece of copper sheet and drill enough so that you can put a 4-6 inch square in between the sensor and the downpipe.
Just look at how the heat sinks are made.It's not hard to do,just bend it,so that it dissipates heat.
Most of the WB O2's are mounted about 30 inches from the Turbo.
An O2 bung is 6 bucks.
grab a piece of copper sheet and drill enough so that you can put a 4-6 inch square in between the sensor and the downpipe.
Just look at how the heat sinks are made.It's not hard to do,just bend it,so that it dissipates heat.
Most of the WB O2's are mounted about 30 inches from the Turbo.
An O2 bung is 6 bucks.
Thread Starter
Joined: Sep 2004
Posts: 3,706
Likes: 4
From: Dinwiddie, Va
PLX AFR2 with DM6 is easy and cheap
.. has soft warm up.. self cal.. will display lambda or any fuel AFR
has 5V out for your ECU logging,, and 1V out to keep factory ecus with feedback happy
.. will watchdog alarm if you wish
also integrates with other PLX devices in serial hub and can be used with software for standalone data logging
PS ..the dm6 touch screen system is pretty cool.. the trend screen display is very handy
.. has soft warm up.. self cal.. will display lambda or any fuel AFR
has 5V out for your ECU logging,, and 1V out to keep factory ecus with feedback happy
.. will watchdog alarm if you wish
also integrates with other PLX devices in serial hub and can be used with software for standalone data logging
PS ..the dm6 touch screen system is pretty cool.. the trend screen display is very handy
on the other hand on a spec page I seen 10-20 which sounds normal.
what is lambda ?
PS. Thanks for your input, I like this widebamd and will probably get.it
Rotary > Pistons






