I am going to install a afr gauge into my rev3 na and would like to know if I can just splice into one of the wires on the o2 sensor if I can which one?
Thanks
Ollie
air fuel ratio gauge
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Re: air fuel ratio gauge
28 views someone must have a idea?
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Re: air fuel ratio gauge
Is this a wideband gauge? If so, it will need its own wideband sensor. A narrowband gauge is pointless.
Re: air fuel ratio gauge
ollie454 wrote:I am going to install a afr gauge into my rev3 na
Why??
Re: air fuel ratio gauge
Because I have one laying about so why not and having a turbo conversion soon
Re: air fuel ratio gauge
Absolutely no point in going wideband on a stock NA 3SGE engine, wait until you convert to a turbo and do it as part of the wiring and exhaust changes then
Re: air fuel ratio gauge
Was only gonna put it in as its in the shed and got nothing to do over the weekend
Re: air fuel ratio gauge
Yeah- why not if you already have a wideband lambda sensor...go for it
If you don't then it's gonna cost you money...
If you don't then it's gonna cost you money...
Re: air fuel ratio gauge
I am not sure if it is a wideband gauge it is not digital and is a depo gauge
Re: air fuel ratio gauge
Never seen a gauge for a narrow band sensor, would seem a bit pointless
Last edited by ashley on Mon Mar 31, 2014 9:52 pm, edited 1 time in total.
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Re: air fuel ratio gauge
ashley wrote:Never seen a gauge for a narrow band sensor, would seem a but pointless
Here you go:
http://www.ebay.co.uk/itm/52mm-LED-AIR- ... _222wt_962
They're all over ebay.
Re: air fuel ratio gauge
Every day's a school day
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Re: air fuel ratio gauge
Here you go Ash. Found you one to go with that Motec digi dash of yours.
It even has a scale that makes it look like a wideband!
And best of all? Although it's priced at a rather heady £10.49, the seller will accpet offers.
And even better - shipping is free direct from paddy field to your door!
http://www.ebay.co.uk/itm/New-2-1-16-In ... 061wt_1036
It even has a scale that makes it look like a wideband!
And best of all? Although it's priced at a rather heady £10.49, the seller will accpet offers.
And even better - shipping is free direct from paddy field to your door!
http://www.ebay.co.uk/itm/New-2-1-16-In ... 061wt_1036
Re: air fuel ratio gauge
ollie454 wrote:I am going to install a afr gauge into my rev3 na and would like to know if I can just splice into one of the wires on the o2 sensor if I can which one?
Thanks
Ollie
dont bother
sounds like you have a narrowband gauge
utterly pointless on any car.
Re: air fuel ratio gauge
Granted, they may be pointless, however I fixed mine up a few weeks ago and just got the experience of running cables through the engine bay into the boot, and also wiring up the electronics.
It lasted about a week of annoying buzzing, and being completely pointless, however it was handy to know what was what.
So if you're like me and have little experience with that sort of thing, then go for it. It's good to do those sort of things.
I did get idle problems though. It happened a few times when it was all connected up and the idle speed kept dropping. I disconnected the wire from the ECU and all has been fine.
Bezly
It lasted about a week of annoying buzzing, and being completely pointless, however it was handy to know what was what.
So if you're like me and have little experience with that sort of thing, then go for it. It's good to do those sort of things.
I did get idle problems though. It happened a few times when it was all connected up and the idle speed kept dropping. I disconnected the wire from the ECU and all has been fine.
Bezly
Re: air fuel ratio gauge
Bezly wrote:I did get idle problems though. It happened a few times when it was all connected up and the idle speed kept dropping. I disconnected the wire from the ECU and all has been fine.
So the cheap gauge's lambda input doesn't have a high enough impedance and therefore mucks up the ECU's ability to read the sensor? Who'd have thought!
As it happens, for a while I had an A'PEXi turbo timer with lambda input hooked up to my rev3 turbo's lambda sensor. It didn't affect the car's running and, because it had a mode to calculate AFR rather than just displaying the lambda value, it actually helped to diagnose a failed wideband sensor
Still, cheap lambda gauges (anything without a 10-20 scale) are just junk and show nothing of any particular use.
Re: air fuel ratio gauge
For a turbo has anyone used these gauges?
http://www.plxdevices.co.uk/product_inf ... 766cf5d5b2
I like the thin design.
http://www.plxdevices.co.uk/product_inf ... 766cf5d5b2
I like the thin design.
Re: air fuel ratio gauge
I have the older, discontinued PLX M300 - works fine from what I can tell. I've now modified it so the display is within the speedo cluster.