New aem wideband gauge with obd connection

[f4m0u5]

Any one useing the new wideband? I wonder if its alot easier to hook up and log rather then useing the rear o2 input and having a constant cel.


Hooking it up looks like a breeze but im wondering how you set it up in the logging software.

http://www.aemelectronics.com/?q=pro...and-uego-OBDII

[christianb5s4]

Only way that I know of to log AFRs overlayed onto ME7logger is to have the signal wire for the wideband go through the stock harness, otherwise you can log the AFR independently but will have to overlay that manually with the rest of your logs.

[f4m0u5]

The new one goes into the obd 2 port and over lays another signsl into the cable you use for logging(its a double ended piece that plugs into ur obd2 port on car and the oposite side still lets you use ur regular vag cable. So was thinking theres a way with the right software. Maybe me7logger has an option for ading a different pid from a different signal.

[vavJETTAw36]

The new one goes into the obd 2 port and over lays another signsl into the cable you use for logging(its a double ended piece that plugs into ur obd2 port on car and the oposite side still lets you use ur regular vag cable. So was thinking theres a way with the right software. Maybe me7logger has an option for ading a different pid from a different signal.

ME7 logger is pretty simple. Just uses a config file that tells ME7logger where to look on the ECU to grab data out. Unfortunately, there is not a way to accept input from other places. Easiest way, as mentioned, is to wire into the existing O2 wiring. You also want to make sure your bung is before any cats. Ideally before any flex joints as any leaks can throw off counts, but this is optional.

[f4m0u5]

Damn i gotta find software that can grab rpm and then add in the a/f

Thanks for advice on placement! Sucks not having the down pipes in the car to look at where to drill into and add the o2 bung. Im thinking i might just use the placement of my rear o2 now that im going to tap into to send the a/f signal. My rear o2s are placed before my cats but after the flex joints though.

[vavJETTAw36]

Damn i gotta find software that can grab rpm and then add in the a/f

Thanks for advice on placement! Sucks not having the down pipes in the car to look at where to drill into and add the o2 bung. Im thinking i might just use the placement of my rear o2 now that im going to tap into to send the a/f signal. My rear o2s are placed before my cats but after the flex joints though.

That's a fine place. Just use that location. The wide bank sensor should be clocked between 10 and 2 o clock for longevity sake. And to get that angle on the down pipe it would most likely need to be dropped. Dropping the down pipe is a son of a bitch unless you have not put your engine back in. I've got an extra O2 bung if you want one (free) for you.


Sent from my iPhone using Tapatalk

[f4m0u5]

Hankfuly its still out of car! Im thinking of just using one of bungs already welded to my exhaust to make it easier. Its hard to tell where theres room for an 02 to stick out without the exhaust and motor in car. Looks like the passanger side will be best bet. The drivers side angle sucks

[christianb5s4]

Passenger side is ideal anyway since that side is typically slightly more lean than the driver's side so if you were to have issues with AFRs, that side would be the more noticeable of the two.

[vavJETTAw36]

Passenger side is ideal anyway since that side is typically slightly more lean than the driver's side so if you were to have issues with AFRs, that side would be the more noticeable of the two.

Yes exactly.

Your passenger side is about how I have mine. It fits between the tranny and underside. What downpipes you running? If ours are the same maybe I can measure from my flex pipe or something.


Sent from my iPhone using Tapatalk

[f4m0u5]

Yes exactly.

Your passenger side is about how I have mine. It fits between the tranny and underside. What downpipes you running? If ours are the same maybe I can measure from my flex pipe or something.


Sent from my iPhone using Tapatalk

Mine are milltek downpipes, i appreciate the help and offer for free bung!!!! But i think im just going to use the o2 bung that there an remove the rear o2 to make it easiest. I got alot of ahit to install now. Its not like before where i was just guna do turbos lol.

I need help with wiring to the original o2 for a way to log it. Where do you splice into? And from where to that point?(im guesing run a wire from the blue or white wire from the gauge connections to the under side or at the oem oe connection point but on the sensor side of connector?) And what wire am of rear o2 am i sending the signal too? I dont want to cut into any of factory wireing

[christianb5s4]

You splice into the original passenger side o2 sensor harness (green), I followed this guide as it will be the same for any wideband so the stock ECU can log AFRs. Of course your rear o2s must be coded out to do this, I will take a look at my car in a few hours after my meeting to confirm what wires are used to which pins on the stock connector.

[Corradovolksb]

To wire in the wideband signal you need to connect the linear output wire from your wideband that sends 0-5v signal to the black wire at the green connector pin 4. That will allow the ECU to read the signal from the wideband. Then of course you need .ecu and .cfg files for me7L that are configured for what wideband setup you have.

[f4m0u5]

Awssome thanks!! Ill figure out how to log and set up software later, just trying to get everything wired up correctly before putting back in motor

[vavJETTAw36]

Awssome thanks!! Ill figure out how to log and set up software later, just trying to get everything wired up correctly before putting back in motor

Hit me up if you need me to walk you through setup.


Sent from my iPhone using Tapatalk

[f4m0u5]

Will do thanks!

[f4m0u5]

You splice into the original passenger side o2 sensor harness (green), I followed this guide as it will be the same for any wideband so the stock ECU can log AFRs. Of course your rear o2s must be coded out to do this, I will take a look at my car in a few hours after my meeting to confirm what wires are used to which pins on the stock connector.

So in ma i csnt have my rear o2s coded out at all. So was thinking how to make it work....



Couldi use a 3 position / pole switch to switch between reading the actual rear o2 sensors data and the widebands o2 data?

I would get a cel while doing logs but with the flick of a switch be able to pass inspection again and get rid of cel??


Or do the o2s legit need to be coded out to log?

[f4m0u5]

Or a 2 wayswitch as such

[vavJETTAw36]

Lol it's not limited to MA. It's illegal to disable any emission components in any state.

Furthermore, the rear oxygen sensors control some of the fueling and if your all of a sudden giving the Ecu a 0-5v signal when it can only discern 0-1v, I'm sure you're going to be screwing up catalyst control. Will probably give you catalyst control out of range errors, too.


Sent from my iPhone using Tapatalk

[f4m0u5]

Lol it's not limited to MA. It's illegal to disable any emission components in any state.

Furthermore, the rear oxygen sensors control some of the fueling and if your all of a sudden giving the Ecu a 0-5v signal when it can only discern 0-1v, I'm sure you're going to be screwing up catalyst control. Will probably give you catalyst control out of range errors, too.


Sent from my iPhone using Tapatalk

I meant it as if they hook my car up and see the o2s coded out they will flag me and send me to get my car back to stock.

So i have no choicebut to do something like this.

Any suggestions besides an extra $100 for another tune with the only difference being the rear o2s

[vavJETTAw36]

Tim, you were on the right track. If coded out correctly, the rear sensors will not ever be looked at by the Ecu. The Ecu will still be able to see voltages of the rears it just won't care about them. As a result, your readiness check for the rear will be set to ready. From this point on the only way they could see if it was coded out would be to monitor the sensors and if the voltages are way wacky or flatlined there's obviously a something fishy going on.

Here is what I think you should do:

1) completely code out rears
2) leave sensors plugged in
3) hook up switch like you want that will switch between wideband and factory narrowband signal wires. This means only touching pin 4 wire so the narrowbands will continue to function.

So when you get an emissions, switch your switch and everything will be good.


Sent from my iPhone using Tapatalk

[f4m0u5]

From a audi tuner shop in ma he said last year they started having the capability to see if the o2s are alterd at all in the program and personally seen people fail with o2s coded out. And he no longer will do rear o2 codes out at all. So idk haha

Im going to have to do the switch idea and also have 2 tunes i guess to be safe

[vavJETTAw36]

What tune do you have? It's simple enough to just flash back to your old tune before getting your car emissioned.


Sent from my iPhone using Tapatalk

[f4m0u5]

Solomotorsports woth flash loader. It is as simple as switching back and forth but cost extra for the second tune cauae im going to have injectors in the car so i cant just switch to a stock or my stage 2 tune

[vavJETTAw36]

Solomotorsports woth flash loader. It is as simple as switching back and forth but cost extra for the second tune cauae im going to have injectors in the car so i cant just switch to a stock or my stage 2 tune

You do not have the stage 3 tune yet, right?

Ok. So you get them to send the file without the oxygen sensors coded out. Then, at the end you ask for the sensors to be coded out. Now you can switch between the two (via Ecu re flash)


Sent from my iPhone using Tapatalk

[f4m0u5]

Eaxactly what i planned! Thanks alot buddy!

[phila_dot]

Alot of nonsense in this thread.

Are you catless? If so, how do you expect to pass without the rears coded out?

If your rears are coded out properly, then you will have no problem with emissions testing. There's no voodoo in MA that changes that. The tester can only view specific PIDs and the ECU will give all the appropriate responses when done right.