Inovate Wide Band MTX-L Ground Question

R100RT · Post by **R100RT** » Fri Mar 15, 2013 6:42 am

I have a question regarding the MTX-L version of Inovate's Wide Band kits. I have been reviewing grounding procedures recently, and noted another post where a squirter separated the O2 sensor ground from the gauge wiring on an LC1 kit - to isolate the higher current for the heater from the other sensitive stuff for gauge readings.
I do not see a way to do this with the MTX-L version, as the simple wiring harness from the gauge only has one 20g black ground wire for all circuits to shair seemingly.
Couple of things come to mind:
a) This doesn't impact the gauge reading.
b) The heater times out and 99% of operating will not see the ground circuit being overburdened.
c) There is some potential for ground issue and I should attempt to break out a separate ground for the sensor?

Hoping someone (Matt) can help shed light on this, perhaps not worthy of pursuing?
Lorne.

Matt Cramer · Post by **Matt Cramer** » Fri Mar 15, 2013 7:04 am

Innovate had a lot of customers confused by the separate grounds, so they combined them on one wire.

R100RT · Post by **R100RT** » Fri Mar 15, 2013 7:09 am

Hi Matt, that sounds like an "affirmative" for leaving in simple format and not worrying about the heater draw then?

Matt Cramer · Post by **Matt Cramer** » Fri Mar 15, 2013 7:41 am

Ground the MTX-L to the engine block.

ehrnst · Post by **ehrnst** » Sun Apr 28, 2013 1:57 pm

Hi, Is there any problems using ms3 sensor ground on the mtx?

SymTech Laboratories · Sun Apr 28, 2013 2:08 pm

ehrnst wrote:Hi, Is there any problems using ms3 sensor ground on the mtx?

Yes, the sensor ground is strictly for low current sensors. The MTX-L's single ground is a high current ground, so it should be connected directly to the engine.

ehrnst · Post by **ehrnst** » Sun Apr 28, 2013 2:19 pm

Thank you. I will change my setup then:)
I guess all ms grounds should be left alone?

SymTech Laboratories · Sun Apr 28, 2013 4:06 pm

ehrnst wrote:Thank you. I will change my setup then:)
I guess all ms grounds should be left alone?

Take a look here for an example of a good ground scheme:

http://www.msextra.com/doc/general/grounding.html

ehrnst · Post by **ehrnst** » Mon Apr 29, 2013 4:24 am

Thank you. I've seen those drawings before, but i guess I was confused since MTX only have one ground wire.

GlostHamer · Post by **GlostHamer** » Mon Aug 19, 2013 11:48 pm

The sensor ground is strictly for low current sensors.

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