Wideband question

[MustangChris]

So,

When my widebands would run at some standard numbers close to STCH. when my passenger side one was unplugged. Then, when I plugged my second one in, they started reading different! Any ideas on that? I find it very strange that simply plugging in a second guage would cause them to do something new. But thats LITTERALLY all i did. Lift car, put in second sensor, lower car. (FYI: i had the wires run, I just didnt have a the bung welded on yet.)

any ideas? Ive been thinking about why my car blewed up and I'm thinking maybe the widebands werent accurate at first (when I thought they were STCH.) and they were accurate afterwards...

 

[Orange 94]

No idea mc, i had lots of issues try to get my wideband working properly too.

 

[rz5.0]

Drive side usually runs leaner.. Do you have the aem dual Wideband?

 

[MustangChris]

i have the auto meter full sweep electric digital read race/street warning lights and memory blah blah blah ones.

 

[Magic]

Look through your instructions for a "re-calibration" mode or steps to recalibrate the sensor(s) then try again.

 

[MustangChris]

did that.


no worky work.

I'm thinking of re-grounding it to the engine... what do you guys think?

 

[rz5.0]

Not sure but as long as you have a good clean ground it should not matter.. Can you datalog that wide band?

 

[MustangChris]

yes. and i can do a WOT sensor thing....

but neither of those options are hooked up.

 

[rz5.0]

My Wideband gauge sometimes gets funky and will read of but when I datalog it Reads normal on my laptop..

 

[MustangChris]

what type of W/B is it?

 

[rz5.0]

I thought it was like a bearing that went out on your car.. I don't think bad fueling would cause that

 

[rz5.0]

I use the lc 1

 

[rz5.0]

I think mine might be a crappy ground on the gauge.. Cuss i didn't ground it with everything thing else like im supposed to

 

[MustangChris]

i dont think so either, but when you spend 21 hours a day on a car forum with no car -- all you can do is think and ponder. lol.

 

[rz5.0]

Yeah i know.. When something goes wrong i try to think of every possible scenarios and won't let it go till i can figure something out..
On your Wideband did you hook up all the grounds to the same spot..

 

[MustangChris]

sort of.

two seperate grounds on the same "ground plate"

 

[mikey94gt]

I'm thinking its a ground issue, the whole system, as far as the widebands are concerned, all operate off the same ground. Since you added the second signal source (wideband sensor) it probably threw off the gage.

 

[MustangChris]

mikey! I've missed your ugly face.


Anyways, Both gauges are powered, signaled, and grounded separately. do you think two grounds to the same "plate" would cause it?