Aftermarket Wideband to Rear O2 signal

[FrX]

Originally Posted by Toyota John

Is is possible to make your own plug in play with this? Splice the wires off a wideband sensor to the cut off plug of a secondary O2? Or do I need an external source of power and ground?

I recommend wiring a separate external power and ground. The secondary O2 plug shares a ground with the throttle body, which seems particularly sensitive to noise and voltage fluctuations.

[Xero-Limit]

Originally Posted by FrX

I recommend wiring a separate external power and ground. The secondary O2 plug shares a ground with the throttle body, which seems particularly sensitive to noise and voltage fluctuations.

This is why we do separate power/ground on our flex fuel.

FYI we have these available now: http://www.moto-east.com/store/moto-...ness-ft86.html

Includes the connector and pigtail as well.

[Toyota John]

There was a thread buy Shiv from OFT where he was saying he was going to make a pnp unit for this but I guess that are working on their turbo kit first.
Edit-just read your post mike would i need the optional power and ground +10?

[Xero-Limit]

Originally Posted by Toyota John

There was a thread buy Shiv from OFT where he was saying he was going to make a pnp unit for this but I guess that are working on their turbo kit first.
Edit-just read your post mike would i need the optional power and ground +10?

IF you wanted to wire the power and ground into the rear o2 plug. It's just pinning the other 3 pins vs leaving them blank so it is a little bit more time and materials. We do it in house now whenever possible because nothing like shipping a bunch of connectors overseas to only get RMAd because some clown did not crimp the pin properly.

But you should get the power from the fuse box, and ground it to the bolt right there or wherever else. We have the low pro fuse taps in the online store or you can get one wherever you'd like for that.

[Fizz]

Originally Posted by moto-mike

IF you wanted to wire the power and ground into the rear o2 plug. It's just pinning the other 3 pins vs leaving them blank so it is a little bit more time and materials. We do it in house now whenever possible because nothing like shipping a bunch of connectors overseas to only get RMAd because some clown did not crimp the pin properly.

But you should get the power from the fuse box, and ground it to the bolt right there or wherever else. We have the low pro fuse taps in the online store or you can get one wherever you'd like for that.

I'll be ordering one of your plug harness thingy. Do you have a picture of how it looks?

[Xero-Limit]

Originally Posted by Fizz

I'll be ordering one of your plug harness thingy. Do you have a picture of how it looks?

Will get it updated when I get back to the shop today, we closed up for service for two weeks so we can get the accounting and remote tuning caught up.

[wowy]

I just got their flex fuel kit with the rear O2 sensor option and I've attached a picture of the cable I received with it. @moto-mike is this what folks can expect?

[Fizz]

@moto-mike So with that harness do we just remove the factory rear O2 harness altogether, plug the connector into the now vacant slot, then crimp the other end of that white wire to the analog signal wire from the wideband gauge......yes?

[Xero-Limit]

Originally Posted by Fizz

@moto-mike So with that harness do we just remove the factory rear O2 harness altogether, plug the connector into the now vacant slot, then crimp the other end of that white wire to the analog signal wire from the wideband gauge......yes?

That's correct. Just make sure to disable rear o2 learning and codes as mentioned elsewhere in this thread.

[Fizz]

Originally Posted by moto-mike

That's correct. Just make sure to disable rear o2 learning and codes as mentioned elsewhere in this thread.

Sorry about the duh question, but can I use a self-sealing butt connector to join the analog wire to the harness wire?

[Xero-Limit]

Originally Posted by Fizz

Sorry about the duh question, but can I use a self-sealing butt connector to join the analog wire to the harness wire?

Sure, solder is best but the heat shrinking butt connectors work fine and we still use them on some versions of the flex fuel kits.

[Fizz]

Originally Posted by moto-mike

Sure, solder is best but the heat shrinking butt connectors work fine and we still use them on some versions of the flex fuel kits.

Thanks. I wanted to use solder but www told it causes resistance and not recommended for AFR wires

[yomny]

First thing, sorry for reviving such an old thread but this guy's full of info. I've noticed the process has evolved quite a bit from having to cut the ECU wires to plugging a harness. Just wanted to ge the correct and most current info. I have contacted @moto-mike so while wait for that, how's this thing installed. The guage is installed then wideband 02 bolts onto slot 2 replacing oem 02 and using its connector then wiring a power and ground to it? Is this power/ground for the gauge in general or for the 02wideband sensor aside from the guages power and ground? Whats the 02 extension that some are getting from Mike for? Thanks

[Sportsguy83]

Originally Posted by yomny

First thing, sorry for reviving such an old thread but this guy's full of info. I've noticed the process has evolved quite a bit from having to cut the ECU wires to plugging a harness. Just wanted to ge the correct and most current info. I have contacted @moto-mike so while wait for that, how's this thing installed. The guage is installed then wideband 02 bolts onto slot 2 replacing oem 02 and using its connector then wiring a power and ground to it? Is this power/ground for the gauge in general or for the 02wideband sensor aside from the guages power and ground? Whats the 02 extension that some are getting from Mike for? Thanks

You will connect your O2 Wideband in the slot where the secondary O2 is palced from factory.

You will connect your Wideband gauge connection as normal, from the O2 harness into the Wideband gauge inside the car.

Now, you need a Wideband gauge that has a 0-5V output cable (example FAilsafe gauge). You will use the Wideband output 0-5V cable and connect it to Moto Mike's harness, and will plug said harness into the car's stock rear O2 electrical connection.

I wish I had that option available when I did mine, it looks very clean.