AEM Wideband O2 gauges

[scarceller]

No, I don't think they account for E10.
If you really want to do base mixture setup the best way possible I suggest you always work in Lambda not AFR. Lambda 1.0 is always the same regardless of fuel type. The target lambda for best complete combustion is 1.0 I run at this value during cruise but I run idle richer at 0.94 since these engine like to idle slightly richer.

Most experienced tuners work in lambda not AFR, all my tuning work is done in lambda.

Originally Posted by Tippy

Hey Sal, does your CO readings account for E10 gas? Good info there!

[scarceller]

Please be aware that we have several decent WBO2 offerings besides AEM, I only suggest AEM because of it's simple package. No extra boxes needed, the controller is built into the gauge. And the wiring is very simple. I do not represent AEM in any way I just wanted to share what I think is an easy to install decent gauge.

[gliding_serpent]

I learned about the aem gauge from the vintage bmw folk a few years backs. Got one for my 2002 and knew it was an essential buy as soon as i got my 911.

[Otter74]

My car has a Megasquirt setup with a wideband sensor, and I'd like to get a WBO2 gauge - am I still going to have to wire the gauge directly from the sensor, or can I get a signal from the ECU under the seat?

[gtc]

AEM suggests using one of their harnesses so the gauge stays calibrated.

[gtc]

Here's mine. Mounted in a VDO 240-027 bracket (available at Napa or just about anywhere), and bolted to the underside of the ash tray.
I used the long harness... i'm not sure the stock harness would have reached. But my routing is also kind of roundabout.

[dicklague]

Originally Posted by scarceller

Agree! The LSU 4.2 sensors often need recalibration, the LC-1 often needs recalibration and you MUST take the sensor out of the exhaust stream to calibrate it, you can not calibrate the gauge with the sensor still in the bung. Huge pain!

With my Daytona Sensors WEGO IV all I do is calibrate it after it not running for a day or overnight. You just turn it on and turn the little screw in the front of the instrument until the light flickers.

[SkunkWorks]

I mounted mine in an old housing and was able to use the stock AEM harness too.

[tmaull]

Just ordered mine...

[KTL]

For folks who want a somewhat simple plug & play solution to putting the gauge in the dash, Rothsport makes a nice clock plug that you can put a 2-1/16 hole in for a gauge.

Welcome to Rothsport Racing - Chassis Products

It's w/out question a bit spendy. But hey nothing 911 seems to be cheap anymore. Plus I like the guys at Rothsport.

I like the ashtray location too. I have a voltmeter and an AFR gauge there in my '86. I used a simple two gauge bracket from AutoMeter there.

[Reiver]

If you have an old non working clock just use it's housing body...a nice fit actually ...went for the analog as it looks a better fit.[IMG][/IMG]

[dicklague]

Originally Posted by KTL

For folks who want a somewhat simple plug & play solution to putting the gauge in the dash, Rothsport makes a nice clock plug that you can put a 2-1/16 hole in for a gauge.

Welcome to Rothsport Racing - Chassis Products

It's w/out question a bit spendy. But hey nothing 911 seems to be cheap anymore. Plus I like the guys at Rothsport.

I like the ashtray location too. I have a voltmeter and an AFR gauge there in my '86. I used a simple two gauge bracket from AutoMeter there.

I used one of those plugs to install my AFR Daytona-Sensors instrument. I also put in a digital voltmeter, temp gauge, clock. I will have to dig up a photo.

[afterburn 549]

I have a AEM
i should be in their sales dept!
It is the best tool I have bought in a long long time .
Is a EZ install, instant readouts.

[scarceller]

The AEM analog gauge also looks period correct for the dash. What about the back lighting on this analog gauge, how does it look?

Originally Posted by Reiver

If you have an old non working clock just use it's housing body...a nice fit actually ...went for the analog as it looks a better fit.[IMG][/IMG]

[Reiver]

Originally Posted by scarceller

The AEM analog gauge also looks period correct for the dash. What about the back lighting on this analog gauge, how does it look?

It is an LED white but I've changed my backlighting to LED too so about the same.

[david.avrahami@]

I am interested in installing the recommended AEM 30-4110 DIGITAL WIDEBAND UEGO CONTROLLER AIR FUEL RATIO KIT NEW BOSCH 4.9LSU.
Sal,
please explain how do you attach the provided sensor to the exhaust bung when there is already an o2 sensor in there? ...

[scarceller]

Take the stock sensor out and replace it with the new WBO2 sensor. You can then take the white wire from the gauge back to the stock O2 sensor connector. The AEM WBO2 gauge has a output line (white wire) that simulates the stock sensor signal.

Or you need to weld another bung for the new WBO2 sensor.

Originally Posted by david.avrahami@

I am interested in installing the recommended AEM 30-4110 DIGITAL WIDEBAND UEGO CONTROLLER AIR FUEL RATIO KIT NEW BOSCH 4.9LSU.
Sal,
please explain how do you attach the provided sensor to the exhaust bung when there is already an o2 sensor in there? ...

[tkmoore]

Subscribing.

[dicklague]

Originally Posted by scarceller

Take the stock sensor out and replace it with the new WBO2 sensor. You can then take the white wire from the gauge back to the stock O2 sensor connector. The AEM WBO2 gauge has a output line (white wire) that simulates the stock sensor signal.

Or you need to weld another bung for the new WBO2 sensor.

B e careful here. The white wire puts out an analogue signal that is 0-5 volts dc. This matches the output of a wideband sensor. If you have a vehicle with an older standard 1,2, or 3 wire connection the range for that sensor is 0 to 1 volt.

Make sure that you do not have the older type O2 sensor as this will not work.

The white wire is designed to pass signals on to an ECU or other instrument that is expecting 0-5 volts. this could be a data recording unit, or another AFR gauge......but not something that is expecting no more than 1 volt.

[scarceller]

You are correct that the default output is 0-5vdc but the gauge has a rotary switch in the back and if you put the switch in pos #4 then the white wire puts out a 0-1vdc signal that looks just like a narrow band O2.
Docs are here:
http://aemelectronics.com/files/instructions/30-4110%20Digital%20Wideband%20UEGO%20Gauge.pdf
You just need to set the switch to position #4

Originally Posted by dicklague

B e careful here. The white wire puts out an analogue signal that is 0-5 volts dc. This matches the output of a wideband sensor. If you have a vehicle with an older standard 1,2, or 3 wire connection the range for that sensor is 0 to 1 volt.

Make sure that you do not have the older type O2 sensor as this will not work.

The white wire is designed to pass signals on to an ECU or other instrument that is expecting 0-5 volts. this could be a data recording unit, or another AFR gauge......but not something that is expecting no more than 1 volt.