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Decided to fit a AFR Gauge Questions...
#1426416
09/05/2013 13:21
09/05/2013 13:21
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Joined: Jul 2009
Posts: 2,618
SE Essex
charlie_croker
OP
I need some sleep
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OP
I need some sleep
Joined: Jul 2009
Posts: 2,618
SE Essex
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I have decided to add an AFR Gauge and after reading the various threads via the Search function, it would appear I have two options: 1. Try and track down a narrow band AFR Gauge and then wire it in. Can anyone recommend a suitable gauge as it's nearly impossible to know what one is wideband what one is narrowband... 2. Fit a wideband Gauge and sensor, I am leaning towards this One I presume, that I replace the stock Lamdba sensor, then connect the wideband to the stock cables and then run another cable through to the cabin? Any help or advice, very gratefully received... 
Happy
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Re: Decided to fit a AFR Gauge Questions...
[Re: charlie_croker]
#1426419
09/05/2013 13:32
09/05/2013 13:32
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Joined: Dec 2005
Posts: 8,925
Lightwater, Surrey
DaveG
Club Treasurer Member 311
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Club Treasurer Member 311
Je suis un Coupé
Joined: Dec 2005
Posts: 8,925
Lightwater, Surrey
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Easiest thing to do is screw the new lambda sensor into a boss somewhere else on the downpipe, eg: just before the flange to the cat. I got a Hayward&Scott larger downpipe with boss already there, although it goes in horizontal and UEGO thing I have recommends it point down slightly. If you put it in place of the OE lambda you need to make sure the gauge can output a simulated narrow band signal for the ECU.
1996 Portofino 20vt & 2000 Pearl White Plus
2008 Ferrari F430 & 2017 Fiat 124 Spider
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Re: Decided to fit a AFR Gauge Questions...
[Re: Thunderbox]
#1426463
09/05/2013 18:09
09/05/2013 18:09
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Joined: Jul 2009
Posts: 2,618
SE Essex
charlie_croker
OP
I need some sleep
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OP
I need some sleep
Joined: Jul 2009
Posts: 2,618
SE Essex
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Mick,
I have a AFR narrow band gauge fitted to a pillar pod. It is simply connected to the existing lambda sensor wire (as well as +12v and ground). It "works"; in as much as you get a lot of needle movement but is not really of any use to tell you of the air/fuel mixture ratio. I fitted one, to be honest, to fill the other pod space after the boost gauge. I would now consider either a wide band (and as with the advice of others) connect to any spare bosses on your exhaust system (my Blue flame system has a boss just before the 200 cell racing cat.) or fuel pressure gauge or exhaust temperature gauge (both with reasonably complicated sensor arrangements).
If you go wide band Innovate are good, Defi are better (but pricey). Stack silver faced gauge suit Plus OEM gauges- I think they may do a wide band AFR.
Good luck!!
p.s. Honnington Farm for you again this year? I can tell you all about the Alfa Spider and the 10 km traffic jam in Lyon I created when it expired!! Thanks for the info and yes I am expecting to get there http://www.honningtonevents.com/italiancar.htm Looking forward to hearing this story (The French appreciate a good road blockade )
Last edited by charlie_croker; 09/05/2013 18:10.
Happy
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Re: Decided to fit a AFR Gauge Questions...
[Re: charlie_croker]
#1426550
10/05/2013 10:18
10/05/2013 10:18
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Joined: Dec 2005
Posts: 8,925
Lightwater, Surrey
DaveG
Club Treasurer Member 311
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Club Treasurer Member 311
Je suis un Coupé
Joined: Dec 2005
Posts: 8,925
Lightwater, Surrey
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If you have a widget, it can monitor the OE narrow band lambda and just like a narrow band gauge, can give you an indication of whether you're running lean or rich, but only on wide open throttle when the ECU stops trying to control the fuelling. And the advantage is no flashing lights and no extra sensor an no need for an extra gauge.
1996 Portofino 20vt & 2000 Pearl White Plus
2008 Ferrari F430 & 2017 Fiat 124 Spider
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Re: Decided to fit a AFR Gauge Questions...
[Re: DaveG]
#1426552
10/05/2013 10:22
10/05/2013 10:22
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Joined: Dec 2005
Posts: 2,194
Göteborg, Sweden
Freddan72
Competition Level
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Competition Level
Joined: Dec 2005
Posts: 2,194
Göteborg, Sweden
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If you have a widget, it can monitor the OE narrow band lambda and just like a narrow band gauge, can give you an indication of whether you're running lean or rich, but only on wide open throttle when the ECU stops trying to control the fuelling. And the advantage is no flashing lights and no extra sensor an no need for an extra gauge. Yes! See this beautiful video Barnacle's widget in action!! | | | V
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Re: Decided to fit a AFR Gauge Questions...
[Re: DaveG]
#1426558
10/05/2013 11:14
10/05/2013 11:14
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Joined: Jul 2009
Posts: 2,618
SE Essex
charlie_croker
OP
I need some sleep
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OP
I need some sleep
Joined: Jul 2009
Posts: 2,618
SE Essex
|
If you have a widget, it can monitor the OE narrow band lambda and just like a narrow band gauge, can give you an indication of whether you're running lean or rich, but only on wide open throttle when the ECU stops trying to control the fuelling. And the advantage is no flashing lights and no extra sensor an no need for an extra gauge. I do have a widget, how do I get it to check fuelling?
Happy
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