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augidog · Joined: 03 Mar 2003 Posts: 1360 Location: New Jersey

I awaiting my air/fuel gauge for installation.
I'm just gathering some info for the na so I can use it to its full potential.
Sounds like fun.

MunkPuppy · Posted: Sun Jul 24, 2005 11:51 am Post subject:

are you using a wide-band O2 sensor or a narrowband O2? With narrowband, you're only going to be able to tell ifyou're rich or lean, no in-between readings, unfortunately

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'80 931 FOR SALE

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augidog · Joined: 03 Mar 2003 Posts: 1360 Location: New Jersey

Raceboy · Joined: 01 Mar 2004 Posts: 2327 Location: Estonia, Europe

Does it have 5 wires? In that case you'll need special box that controls the heating if it and displays numbers. You can do it yourself, but it's not an easy task (couple of printed circuit boards + parts + soldering)
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'83 924 2.6 16v Turbo, 470hp
'67 911 2.4S hotrod
'90 944 S2 Cabriolet
'78 924 Carrera GT replica
'84 928 S, sold
'91 944 S2, sold
'82 924S/931 "Gulf", sold

'84 924, turbocharged, sold.
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endwrench · Joined: 07 Dec 2002 Posts: 1631 Location: Victor, Montana

No GM product has ever come with a wide band O2.

Todd

augidog · Joined: 03 Mar 2003 Posts: 1360 Location: New Jersey

J1NX3D · Joined: 06 Feb 2003 Posts: 1333 Location: New Zealand

sounds awesome!!

im getting one of these guages:

jpab924 · Posted: Fri Nov 04, 2005 2:57 pm Post subject:

I bought an a-pillar pod to put in my 924 turbo.

I`m looking at air/fuel guages. The autometer website says that their guage will work with most narrow band 02 sensors.

http://www.autometer.com/cat_gaugedetail.aspx?ref=search&gid=2606

Can anyone confirm that the narrow band sensor in my 924 turbo will work with this guage? Or will I need to buy their acc. kit?

http://www.autometer.com/cat_accessoriesdetail.aspx?vid=162

I`d to opt for a wide band setup...but for 500.00 its past my budget.

Smoothie · Posted: Sat Nov 05, 2005 2:22 am Post subject:

Unless there's an oddball sensor out there somewhere that I don't know about, any narrow band o2 sensor will work with any narrow band air:fuel gauge. They're all the same as far as chemical reaction and electrical output.
I have the one Bosch o2 sensor in its' OE position and wire to the OE connector and wire below-behind the crossmember that then runs on up to the Lambda box under the dash. I tapped a second single-conductor wire in between the crossmember connector and o2 sensor (so it can be unplugged from the Lambda box, but remain connected to the gauge for testing). Some say you should have a second o2 sensor for the gauge, but I'm using just one with no apparent dysfunction (car runs fine and the gauge reads just as it should under different conditions - idle, part throttle, WOT, etc.).
If you're fussy, you could use a shielded wire from sensor to gauge like Porsche used from sensor to Lambda box.
_________________
"..it's made in Germany. You know the Germans always make good stuff."

'82 924T, US version, dark green metallic, 5 speed Audi 016G gearbox

jpab924 · Posted: Sat Nov 05, 2005 5:21 am Post subject:

Ok Smoothie, just wanted to be sure the Porsche 02 wasn`t one of those "oddball" sensors.

I have the 02 sensor unplugged from the system now. Engine runs a whole lot better without it.

I was going to just tee off somewhere in the cabin of the car close to the lambda box.

Smoothie · Posted: Sat Nov 05, 2005 8:17 am Post subject:

Well it might actually be easier to T-in where I described because there's a short length of single-conductor wire there that's easy to tap in to. The rest of the wire from cross-member connector to lambda box is a coaxial shielded wire.
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"..it's made in Germany. You know the Germans always make good stuff."

'82 924T, US version, dark green metallic, 5 speed Audi 016G gearbox

jpab924 · Posted: Sat Nov 05, 2005 1:11 pm Post subject:

Ok I gotcha now.

I`ll prod and poke when I`m ready....but your advice is solid.

augidog · Joined: 03 Mar 2003 Posts: 1360 Location: New Jersey

$19.00 O2 SENSOR

My used one stopped sending voltage,it was all blackened from the my Chevy Blazer it came from with a leaking fuel spider.
I would not get a heated again.
The wires already melted together and shorted out causing a toaster effect on the highway,also frying my voltage regulator and toasting the chip in the gauge.
With everything now replaced I'm looking forward to tuning again. It was amazing the immediate response felt in the engine to tuning to the sensor's read out. I was running very rich and the adjustment in the mix can be as little as an 1/8th turn on the allen.

https://www.automedicsupply.com/catalog4.php?#
_________________
1978 924 95 mile daily driver.
Audi TB/POR174M/High Flow Cat/2.25" exhaust
I knew that positive thinking thing wouldn't work.

ryoji · Joined: 10 Oct 2003 Posts: 168 Location: NNJ

I used this for the race car. It shows ratio instead of pre-programmed arb. light.

If you want to buy : http://www.cbperformance.com/catalog.asp?ProductID=598

However, I thought CIS keeps the ratio pretty much the same for all range of usable RPM, as well as the degree of the pedal you press.
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R.I.P.:a 924 ITA race car

augidog · Joined: 03 Mar 2003 Posts: 1360 Location: New Jersey