stupid 02 sensor ?

[j753303]

another stupid ms3 question. when i use a wideband on the passenger side for the goldbox can i completely remove the factory 02 sensors and harness then put a plug in the other hole?

 

[93Stang5oh]

You could do that but the MS3 Gold Box has 2 Oxygen Sensor inputs so I'm not sure why you wouldn't go with a sensor on both banks?

 

[j753303]

i didn't know that was an option. how does that work with the afr gauge? and wiring it up? would the gauge just read 1 but the gold box would use both?

 

[93Stang5oh]

You would need two separate controllers and two separate gauges, one for each o2 sensor. You really don't need the gauge unless you want to compare what the gauge is reading/showing as to what Megasquirt is reading.

 

[j753303]

do people typically run 2 wide band sensors?

 

[a91what]

Turbo guys run 1 as its measured in the downpipe.
2 is not absolutely required but some engines (about 50%) have a .5afr difference between banks and with a second O2 you can trim one side to match the other. The ECU will even do this for you.

 

[j753303]

i have the aem x series gauge and controller. what do i need to set it up for 2 widebands? it looks like the gauge is the controller? and would the gauge just see 1 bank?

 

[a91what]

Unfortunately you would have to have a second wb O2. Controller and all. It has to match the first one you have.

 

[j753303]

https://www.summitracing.com/parts/inn-3891?rrec=true

what do you think of this? or does 14point7 have something i could put together?

 

[a91what]

That would work just fine.
You could also just use two spartan2 WB but they wont have a gauge to go with them.

 

[Noobz347]

That would work just fine.
You could also just use two spartan2 WB but they wont have a gauge to go with them.

Why could you not use the Spartan as the second and scale it?

 

[a91what]

Why could you not use the Spartan as the second and scale it?

The software is hardcoded to only accept one scale for the WB input. This means that all WB controllers need to be the same or scaled the same.
You can monitor any input you want for data logging at any scale but to use them as EGO inputs they must go through the main AFR mapping.

Most units these days can be connected to a laptop via serial connection and using their software you can rescale them so that they all match, then this scale is then input into the MS. The scales have to match even if they are CANBUS connected.