Ok read true your info,

1 the your dyno box and the MTX-L plus needs to have the same minus= 0V   thats the 0V on the AUX1 go to negative on the MTX-L ?

2 The Aux 1 signal goes to MTX-L  output wire.....cant see what wire on the MTX-L ...red,blue,white,black ???

Can someone verify...or correct me

yhakan@telia.com

Hi, looking the manual of your wideband .

https://www.innovatemotorsports.com/support/manual/MTX-L%20PLUS.pdf

You have a wire analog output. yellow wire. According manual:

Optionally, the YELLOW (Analog output) can be connected to the
analog input of other devices such as data loggers or ECUs. If this
output is not going to be used, isolate and tape the wire out of the way.
The default analog output is configured as follows: 0V = 7.35 AFR and
5V = 22.39 AFR.

Just you have to put that wire in yourdyno with black wire and you are done.

For configure it, you have too the values.

Cheers.

Thanks Walter, I was looking at the "output connector" with 4 wires but see now what you mean!

Thanks

By the way are you or other using stepper motor for water cntrol??  If so what stepper motor and driver are you using ( unidirectional or bidirectional motor)..and what valve ?? Im thinking of making my own valve ..like "land&sea"  type of valve!

Thanks for some answers!

Hakan

not, im not familiar with water dynos,sorry!