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AFR Gauge wiring #1388613
31/10/2012 15:50 31/10/2012 15:50

M
Marco20ValveT
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Marco20ValveT
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M



Can some one help me out on this?

Black = Negative
Red = positive
Green = Lambda reading / signal wire

thats easy.

But where do i connect the green wire to?
ive seen on some peoples car they connect it to the lambda sensor wire.

but which one???

any comments welcome!

Thanks

Marco
Re: AFR Gauge wiring [Re: ] #1388616
31/10/2012 16:17 31/10/2012 16:17

A
Abarth116
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Abarth116
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Re: AFR Gauge wiring [Re: ] #1388620
31/10/2012 16:53 31/10/2012 16:53

M
Marco20ValveT
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Marco20ValveT
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M



i have seen that.
But i know people tap off a signal wire from the lambda sensor.
thats the route i want to go down instead of opening my ECU up.
Re: AFR Gauge wiring [Re: ] #1388632
31/10/2012 18:08 31/10/2012 18:08
Joined: Feb 2008
Posts: 1,728
London
kj16v Offline
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kj16v  Offline
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Joined: Feb 2008
Posts: 1,728
London
Hi Marco. You o2 sensor has 2 white wires, 1 black and 1 grey?

Tap in to the car-side connector wiring that connects to the black wire. This is the signal wire.

The others are white= heater
Grey= Ground
Re: AFR Gauge wiring [Re: ] #1388671
31/10/2012 20:54 31/10/2012 20:54

M
Marco20ValveT
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Marco20ValveT
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M



Fantastic!

Thanks KJ!
Re: AFR Gauge wiring [Re: ] #1388711
31/10/2012 22:50 31/10/2012 22:50
Joined: Feb 2008
Posts: 1,728
London
kj16v Offline
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kj16v  Offline
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No problem smile

BTW. Apologies if you know this already; a narrowband gauge like the one I guess you have will only indicate above or below stoich (14.7:1 AFR) To get a true AFR reading you requires a wideband gauge and wideband O2 sensor.
Re: AFR Gauge wiring [Re: ] #1388750
01/11/2012 00:20 01/11/2012 00:20

M
Marco20ValveT
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Marco20ValveT
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I just want to use it to make sure it does not run bad on boost once she's run in.

Thanks for the advice mate smile
Re: AFR Gauge wiring [Re: kj16v] #1388798
01/11/2012 12:50 01/11/2012 12:50

N
nismo
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nismo
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Originally Posted by kj16v
Tap in to the car-side connector wiring that connects to the black wire. This is the signal wire.


2nd that laugh

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