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Old 09-09-2016, 04:41 PM   #1
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Default Innovate MTX-L Wire Gauge?

Hey all, I just picked up my Innovate MTX-L wideband and I'm going to be installing this weekend. I couldn't really find it online, but what is the recommended gauge of wire to run from the O2 gauge to the engine bay? I decided to guess at bought some '18 AWG' at the local Canadian tire. No idea how wire nomenclature works, just wondering if I can use the wire I picked up and if not, what I should be using.

Very excited about this install, since it's the first 100% turbo-oriented car work I've ever done! Megasquirt2 PNP is on its way as well...
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Old 09-09-2016, 04:45 PM   #2
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22 awg is pretty typical for analog signals like this.
18 awg is more used for higher amp power wire and is overkill but it would work just fine.
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Old 09-09-2016, 04:48 PM   #3
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Googling will find that an MTX-L draws around 3 amps. You can look up charts that have a safe wire gauge for each amperage at the length of wire. 18 gauge wire is safe for 5 amps at 25', so you're definitely safe to use that.

Edit: These 3 amps would be for the power and ground wires. If you're talking about the signal wire to Megasquirt, then signal wire is often 22 or even higher, up to 26 or even 30 gauge.
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Old 09-09-2016, 04:51 PM   #4
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Quote:
Originally Posted by acedeuce802 View Post
Googling will find that an MTX-L draws around 3 amps. You can look up charts that have a safe wire gauge for each amperage at the length of wire. 18 gauge wire is safe for 5 amps at 25', so you're definitely safe to use that.

Edit: These 3 amps would be for the power and ground wires. If you're talking about the signal wire to Megasquirt, then signal wire is often 22 or even higher, up to 26 or even 30 gauge.

Wow, neat chart. I know next to nothing about electrical, so this was super helpful. Thanks a lot
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