Anyone using a SMEC with the 0-1V output from a wideband?

[streetpirate]

sorry, fixed

[streetpirate]

...and the gauges in MPScan seem good (after fixing the map, not done in that log file) with maybe the exception of the charge temp?

[wowzer]

i've got a little more testing to do with some of the gauge settings in mpscan, then i'll post an update to the layout files.

[Shadow]

So what's the upshot of all of this? I'm hooking up an AEM wideband gauge and going to use the analog output for signal to the SMEC. Will there be any issue with the ECU +/- feeds to power the stock 02 Not being used?

Reading through this I can't tell IF anyone has done this successfully or not?

[wheming]

In Mini I'm using the wideband input to a boostbutton flashable smec 0-5v. And it is working, I'm using an MTX-L which has a 0-1v output and 0-5v output available.
The output wire is connected to the o2 sensor plug signal terminal. I don't get any o2 heater code either.

[Shadow]

In Mini I'm using the wideband input to a boostbutton flashable smec 0-5v. And it is working, I'm using an MTX-L which has a 0-1v output and 0-5v output available.
The output wire is connected to the o2 sensor plug signal terminal. I don't get any o2 heater code either.

So just running the single "signal" wire and leaving the other two open, correct?

That answers 1 Q, Thanks!

Now, this is the AEM wideband gauge and I believe it has 0-5v analog output. Has anyone ran this gauge and output to the SMEC and Knows it is compatible? (pretty sure the DSM boys have with success)

[wheming]

So just running the single "signal" wire and leaving the other two open, correct?

That answers 1 Q, Thanks!

Now, this is the AEM wideband gauge and I believe it has 0-5v analog output. Has anyone ran this gauge and output to the SMEC and Knows it is compatible? (pretty sure the DSM boys have with success)

Mine is a 4-wire, but yes.

Regardless of which brand wideband you would have to set up the proper o2 gauge range in your cal.
I think Morris and Rob explained that earlier in this thread. Otherwise you will be sending the output but the ecu will see an incorrect value.
You will need to turn on the WB2NB function in the turbonator cal, also.

[Shadow]

After some searching I have found several references to using the P4 output on many older narrow band set-ups. I also found this;

P0 measures from rich(0v) to lean(4.25v)
P1 measures rich(0v) to lean(4.25v) in lambda values
P2 measures rich (1v) to lean (1.850v)
P3 measures rich (0v) to lean (.425v)
P4 measures rich (.905v) to lean (.070v)

So without recalibrating anything, P4 looks like it Could function very close to "normal".

Anyone see a problem?

[Ondonti]

Funnest thing about feeding narrowband to your ECU from a wideband is when the wideband goes bad, your car becomes fairly undrivable and very difficult to diagnose. Is the wideband reading a failure or causing the failure .

[tryingbe]

I thought the AEM didn't have a narrow band output?

http://www.turbo-mopar.com/forums/sh...l=1#post990417

I was wrong. You can set the white wire analog output from the 0-5v output to 0-1v by switching from P0/P1 to P4 at the switch behind the AEM gauge.

[ShelGame]

So just running the single "signal" wire and leaving the other two open, correct?

That answers 1 Q, Thanks!

Now, this is the AEM wideband gauge and I believe it has 0-5v analog output. Has anyone ran this gauge and output to the SMEC and Knows it is compatible? (pretty sure the DSM boys have with success)

Yes, it is. The SMEC and SBEC can take a 0-5v signal instead of the 0-1v signal. But, you need the WB2NB function turned on for the SMEC/SBEC to do anything with it.

[Turbo Joe]

Yes, it is. The SMEC and SBEC can take a 0-5v signal instead of the 0-1v signal. But, you need the WB2NB function turned on for the SMEC/SBEC to do anything with it.

I've spent the entire evening trying to find where to turn on the wb2nb functions in the T3 cal but can't find it anywhere...I have been feeding the sbec with a 0-1v signal wire from my wideband and am going to switch it to 0-5v but can't find the setting. I know I have to change my disply gauge in MPScan but in MPTune I can't find the functions for it??

[wheming]

Not familiar with a tiii cal, but it is under Turbonator functions in the smec cal. You'll also have to enable WB2NB in the setup tab.

[ShelGame]

I've spent the entire evening trying to find where to turn on the wb2nb functions in the T3 cal but can't find it anywhere...I have been feeding the sbec with a 0-1v signal wire from my wideband and am going to switch it to 0-5v but can't find the setting. I know I have to change my disply gauge in MPScan but in MPTune I can't find the functions for it??

It's not in the TIII cals yet.

[Turbo Joe]

It's not in the TIII cals yet.

so T3 cal users can't use the wideband 0-5v signals yet? or will it work anyway and all I have to do is adjust the wideband gauge in MPscan? with cecil in a couple days the last thing I want to do is take things apart for nothing

[ShelGame]

so T3 cal users can't use the wideband 0-5v signals yet? or will it work anyway and all I have to do is adjust the wideband gauge in MPscan? with cecil in a couple days the last thing I want to do is take things apart for nothing

The WB2NB function isn't in the T3 cals yet. So, you can't (easily) feed the WB signal into the T3 SBEC or SBECII.