i'm running an fjo on my car with the ems, and have had no problem with it, i bought it off my buddy and he ran lots of race gas through his TTA with no problem, also mounted it in the clock location

 

Would mounting the wideband in the O2 housing be smart?

 

It will work but there's a chance the sensor will overheat. According to AEM and Innovative Motorsports the sensor life will be dramatically shorter if it is overheated.

 

there is a heat sink bung extender you can get from the LM-1 to reduce heat on the O2 sensor. You can install it either way. but routing in front was much easier that I found

 

As for those compairing the AEM to a dyno wideband, I had to calibrate mine to my dynos wide band, its a simple comparison of what voltage the aem sensor puts out to the actual AFR the dyno was putting out. Input that AFR in that voltage, do a few more points on the graph and interpolate.

 

And that would make it more costly than any other setup.. nice.. Didnt know I had to buy a dyno session with purchase.

 

Anyone using the XD-1 and LC1 setup with their AEM? If so, how do you like it so far?

 

I've got mine set up to feed my AEM EMS. I love it. Scaling the XD-1 analog output to fit with the possible voltage values accepted by the EMS is a piece of cake.

Step 0: RTFM
Step 1: Calibrate the O2 sensor input to set the low & high values for AFR scale you want to use in the EMS. The EMS software tends to "round" up or down to a possible AFR and voltage values it will accept. Write down these values, ie 8.98AFR=0v; 18.99AFR=4.99v. Use the EMS to calculate the values in between to create a linear calibration.
Step 2: Using the LC-1 programming software, plug in the values to create an output on either analog 1 or analog output 2 depending on which one you've connected to the EMS.
Step 3: Assuming you're also using the XD-1, adjust the O2 input gain in the EMS so that the output on the gauge matches the O2 reading displayed by the EMS. The value displayed on the XD-1 will be as accurate as the free air calibration will allow so it's best to sync up the EMS values with the XD-1 display. If you see the gain calibration creep over time then creating a dedicated ground between the LC-1 and the EMS will help in stabilizing the required gain value.

 

Bear in mind that if you do this, you need to make sure that you compensate for the time it takes the exhaust to travel fromthe point where your UEGO is installed inthe downpipe and where the dyno sensor is installed. If the dyno WBO2 sensor is installed in the tailpipe there will be significant lag between it's readings and the UEGO at a given time or RPM value in a dyno run.

 

If you guys need the XD-1/LC-1 we have quite a few in stock. 349.00 Shipped. Hard to keep these bad boys on the shelf!

 

I also disagree with the AEM Wideband not being good. We have the Innovate LM1 on our dyno and use a tail pipe sniffer. All of the EMS's I tune with the AEM wide band in them are dead on with what the LM1 is inputing to the dyno.

I say if you have an AEM wide band that is one full point off you have something faulty or the dyno shops is.

It is not typical is all I am trying to say.

I also highly recommend the 1313U box, which is the integrated wide band box. No wiring involved, no external controllers. Just plug it all in, calibrate and go. I prefer this box hands down to the rest.

David Buschur
www.buschurracing.com

 

Dave,

This is funny you write this as i also was told that the AEM Uego wideband would read wrong. So my choice was an FJO or an LM-1. Well i ordered an LM-1 with the XD-1 gauge and my AEM UEGO reads EXACTLY like it. This tells me my AEM UEGO gauge is reading perfect. So basically i spent money to find out it works perfect...

 

Luis I thought you told me that the LM-1 was reading 1 point richer?

 

Krunal,

I had the AEM UEGO hooked up per AEM's instructions which are incorrect. The instructions say to wire the positive to an accesory and the ground directly to the battery. I have been thinking that the AEM UEGO was a POS because of all the misinformation on the net. Their has been a case of some miscalibrated gauges, but AEM has fixed them and will fix them for free upon request. I was told that wiring the gauge directly to the AEM itself was a bad idea, so i was scared to try it and was even told it could fry my aem. Well i tried it anyways and lo and behold it reads correct.

Since i asked you if your car was tuned on the dyno using the dyno wideband, it was for a reason. I wanted to make sure your UEGO was incorrect. Except you have the aem with the built in wideband. I didn't know that at the time, but figured your box was using the internal AEM to drive your wideband. Now i know why Mr. Buschur HIGHLY recommends the box with the built in wideband. I have spent alot of time and money to make sure my wideband reads correctly.

Luis

 

NICE dude. That gives me a peace of mind that my wideband is reading correctly. But still i want a gauge hehe