1G Wideband question

[bryanzomg]

my car has narrowband simulated through link and I have a AEM wideband hooked up to ecu. If my wideband sensor is taking a crap will this cause the car to run like crap as well??

 

[pauleyman]

Yup.

 

[pauleyman]

You kinda need to define that though. Bad o2. Ecu doesn't know what to do so it will default rich. WOT ecu doesn't look at o2.
So what does " run like crap" mean

 

[bryanzomg]

Yup.

How so? Please explain I’m too curious. I’ve had wideband sensor crap on me before but the car ran fine l

 

[bryanzomg]

You kinda need to define that though. Bad o2. Ecu doesn't know what to do so it will default rich. WOT ecu doesn't look at o2.
So what does " run like crap" mean

Crap “loss of power randomly”. I don’t have 02 sensor it’s being simulated through LINK. Only have the 02 for wideband hooked up

 

[pauleyman]

I just explained. Without o2 feedback ecu can't shoot for stoic at part throttle

 

[bryanzomg]

I just explained. Without o2 feedback ecu can't shoot for stoic at part throttle

So the ECU uses the wideband 02 for feedback?

 

[pauleyman]

So the ECU uses the wideband 02 for feedback?

Umm....well you stated you simulate o2 narrow band. So yes in that case it does.

 

[bryanzomg]

Umm....well you stated you simulate o2 narrow band. So yes in that case it does.

Ok thanks man! Just looking for knowledge!!!
Not sure if I had more issues to chase down besides a bad wideband sensor!

 

[pauleyman]

Crap “loss of power randomly”. I don’t have 02 sensor it’s being simulated through LINK. Only have the 02 for wideband hooked up

I don't think you understand how this works. Ecu can't use a wideband input. Ecmlink allows you to take the wideband input and "simulate" narrowband.
Random loss of power? Probably not.
How do you know wideband is going out? Logged it?

 

[bryanzomg]

I don't think you understand how this works. Ecu can't use a wideband input. Ecmlink allows you to take the wideband input and "simulate" narrowband.
Random loss of power? Probably not.
How do you know wideband is going out? Logged it?

The wideband reads completely lean under any load, OR it’ll read 13.3 constantly under any load or it’ll be erratic jumping around rapidly.
During partial throttle the car will almost “bog down” is the best way I can explain it

 

[pauleyman]

This is probably why some guys like to simulate and others don't.

 

[pauleyman]

You could always slip the old sensor back in just to check

 

[bryanzomg]

You could always slip the old sensor back in just to check

Check what exactly? That the wideband is culprit for partial throttle issue?

 

[pauleyman]

Check what exactly? That the wideband is culprit for partial throttle issue?

Yes. Likely it is.

 

[bryanzomg]

Yes. Likely it is.

It should be! Started happening as soon as sensor went haywire. Thanks will report back sometime this week. You were very helpful

 

[jpmxrider489]

To test the wideband sensor, with the car off and key on. The gauge should max out or read---. Next take the sensor out and soak a paper towel in rubbing alcohol and gauge should read 10.

 

[bryanzomg]

To test the wideband sensor, with the car off and key on. The gauge should max out or read---. Next take the sensor out and soak a paper towel in rubbing alcohol and gauge should read 10

It jumps around with car off

 

[jpmxrider489]

It jumps around with car off

Hmm, after a few seconds it's still jumping around? Is your o2 in the front or rear? I would try the rubbing alcohol test. Let me know what happens then.

 

[Vegas Smith]

Sensor is likely dying based on what you describe. As previously mentioned, when the wideband is your only o2 sensor you're relying on it for your fuel trims.

 

[bryanzomg]

Update: swapped wideband sensor, same results, must add that it stays at 14.8 with car off

 

[Justin DuBois]

Update: swapped wideband sensor, same results, must add that it stays at 14.8 with car off

Wiring harness?

 

[bryanzomg]

Tuner says gauge is bad??

 

[Justin DuBois]

I reccomend: https://zeitronix.com/
I run with a ZT-3

 

[BLACK'98DSM]

Tuner says gauge is bad??

The gauge being bad only justifies your false readings. It doesn't justify the engine running like shit.