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m150 and RG 2 wire temp

PostPosted: Wed Apr 01, 2026 5:43 am
by ZT-R
Hey guys, how do i setup this RaceGrade 1/8 temp sensor? they wired it to "Lamda Narrow 1" channel. i have the voltages entered, not sure how to check if pull-up is active.
here's a link to the docs. sorry for the huge pictures.
https://www.milspecwiring.com/RaceGrade ... p_398.html

Re: m150 and RG 2 wire temp

PostPosted: Wed Apr 01, 2026 5:44 am
by ZT-R
do i have to change the axis?

Re: m150 and RG 2 wire temp

PostPosted: Thu Apr 02, 2026 9:39 am
by SOReilly
The lambda narrow inputs aren't really suitable for a temperature sensor.

You should be using an AT input.

Re: m150 and RG 2 wire temp

PostPosted: Thu Apr 02, 2026 10:28 am
by Stephen Dean
To use the Lambda Narrow input you will need to wire in an external pullup for this sensor.

Re: m150 and RG 2 wire temp

PostPosted: Fri Apr 03, 2026 12:42 am
by ZT-R
ok i think i gotta find a sensor 5volt supply and tap into that and then the other end goes to the signal. sorry im still learning all this technical stuff.

Re: m150 and RG 2 wire temp

PostPosted: Fri Apr 03, 2026 3:43 am
by ZT-R
SOReilly wrote:The lambda narrow inputs aren't really suitable for a temperature sensor.

You should be using an AT input.

we would have but we are all out of inputs short of a can expander.

Re: m150 and RG 2 wire temp

PostPosted: Fri Apr 03, 2026 10:01 am
by ZT-R
All sorted thank you.