AFR Guage Install Question

rominun · 01-03-2018, 07:45 PM

looking to add a physical afr guage but im puzzled on how to wire it to both of the sensors. I could wire it to only 1 o2 but i wouldnt feel 100% confident in the reading on the other bank. Any afr wires runninf out from the dme that i can splice into? also looking at the same for a iat and egt guage.

iminhell1 · 01-06-2018, 05:48 AM

I have heard that tapping into a factory wideband compromised the signal to the ECU. Signal is no longer reliable. No idea if true, butt based on inherent voltage losses I wouldn't risk it. Same for IAT.
Car has no EGT sensor stock.

Honestly your best option is to use the JB mobile app and a phone. It's things you already have.

I'd imagine the gauges would either end up in a location that isn't direct sight or if they are they obscure the forward/side vision.

Another option is something like the Awron gauge or Ultra Gauge.

01-03-2018, 07:45 PM	#1
rominun Banned 185 Rep 615 Posts Drives: 2008 Bmw 135i Join Date: Sep 2016 Location: So-Cal iTrader: (0)	AFR Guage Install Question looking to add a physical afr guage but im puzzled on how to wire it to both of the sensors. I could wire it to only 1 o2 but i wouldnt feel 100% confident in the reading on the other bank. Any afr wires runninf out from the dme that i can splice into? also looking at the same for a iat and egt guage.
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01-06-2018, 05:48 AM	#2
iminhell1 C2H5OH 4482 Rep 2,183 Posts Drives: 2010 SG 135i auto Join Date: May 2015 Location: Darwin, MN iTrader: (1)	I have heard that tapping into a factory wideband compromised the signal to the ECU. Signal is no longer reliable. No idea if true, butt based on inherent voltage losses I wouldn't risk it. Same for IAT. Car has no EGT sensor stock. Honestly your best option is to use the JB mobile app and a phone. It's things you already have. I'd imagine the gauges would either end up in a location that isn't direct sight or if they are they obscure the forward/side vision. Another option is something like the Awron gauge or Ultra Gauge.
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