AEM EMS Area is for discussing the AEM Engine Management System!

AEM Who has an AEM wide band setup??

Old 07-21-03, 07:45 AM
  #1  
Rotary Freak
5 Year Member
Thread Starter
 
SaabGuy's Avatar
 
Join Date: Oct 2001
Location: Atlanta, GA
Posts: 1,514
Likes: 0
Received 0 Likes on 0 Posts
Who has an AEM wide band setup??

I recently recieved an AEM single channel wide band o2 sensor setup for $360 bux shipped. This setup came with the control unit and LSU4.2 wideband sensor. So far it has worked out to the highest of standards.

I do not have a proper display for this unit as of yet; I am using a Fluke digital multimeter which is kind of slow reacting.

I am in the process of tuning my car with this device. Is this wideband o2 something that I can rely on to give me acurate a/f values? In the manual the specs say withing .06% which is %99.94 acurate for the sensor alone, and a +/- .1 a/f for the entire setup.

two thumbs up!
SaabGuy is offline  
Old 07-21-03, 07:45 AM
  #2  
Rotary Freak
5 Year Member
Thread Starter
 
SaabGuy's Avatar
 
Join Date: Oct 2001
Location: Atlanta, GA
Posts: 1,514
Likes: 0
Received 0 Likes on 0 Posts
Oh heres my mods
SaabGuy is offline  
Old 07-31-03, 11:37 AM
  #3  
No it's not Turbo'd
10 Year Member
 
DCrosby's Avatar
 
Join Date: Jun 2002
Location: Los Angeles, Ca
Posts: 2,510
Likes: 0
Received 0 Likes on 0 Posts
Depends ond how secure you feel in your tuning skills

But sure... the wideband will tell you accurate AFR's as long as you know what you're looking at with your multimeter... I assume you calculated out what the voltage range is or what sort of values you're getting from the range... I.E. 3V = 13/1 Ratio !?
Not that I'm stating that that's correct you just might want to make tripple sure you know what you're looking at without an AFR Display.

-DC
DCrosby is offline  
Old 08-01-03, 09:13 AM
  #4  
Rotary Freak
5 Year Member
Thread Starter
 
SaabGuy's Avatar
 
Join Date: Oct 2001
Location: Atlanta, GA
Posts: 1,514
Likes: 0
Received 0 Likes on 0 Posts
The manual for the AEM cross referenced the a/f's to voltage. I made a nice visible excel spreadsheet crossreferencing the values as well.

It is actually becomming second nature looking at the volt meter. 4v = 14.7af, 2.5v = about 11.5af and so on.
SaabGuy is offline  
Old 08-01-03, 11:10 AM
  #5  
No it's not Turbo'd
10 Year Member
 
DCrosby's Avatar
 
Join Date: Jun 2002
Location: Los Angeles, Ca
Posts: 2,510
Likes: 0
Received 0 Likes on 0 Posts
If you feel comfortable with that, go for it.. I'm just not sure what you're trying to do...
If you're doing some hard core tuning I'd be sceptical... to rely on the voltmeter... but If you're just trying to see what's going on in the rotor housing... it's probhably not a bad reference...

-DC
DCrosby is offline  
Old 08-05-03, 01:19 PM
  #6  
Addicted to Track
 
TailHappy's Avatar
 
Join Date: Jan 2002
Location: NC
Posts: 902
Likes: 0
Received 0 Likes on 0 Posts
I got one for use with my PFC and datalogit. I'm still skeptical though. How steady are your readings? I'll get 3 or 5 that are within a few tenths of each other, and then a reading that's like 3 full points away. Are you using the signal ground? I've found that subtracting it from the original voltage seems to just make my readings even worse. I'm not sure if the electronics or sensor are giving bad values, or if maybe something like bad plugs or injectors are causing the fluctuations.
TailHappy is offline  
Old 08-09-03, 10:25 PM
  #7  
Photo Diety
15 Year Member
 
rx7tt95's Avatar
 
Join Date: Mar 2001
Location: Florida
Posts: 2,311
Likes: 0
Received 0 Likes on 0 Posts
The AEM unit does use a different wide band model from the Datalogit which I believe is faster reacting? I have the datalogit and Techedge WB (1.0) and I often have some of the same concerns as you Tailhappy. It seems to be working pretty well for me however. I use lots of other data such as knock, sensors, timing, etc..to tune. seems like my biggest beef is the logging speed. Not sure where the bottle is...I get about 5 samples per second or so.

From reading all the stuff on the AEM board, it seems like you can type in the target a/f ratio and the wideband/ECU will do the rest. Should be simple as pie. Are you guys able to log knock and all other engine parameters along with a/f?
rx7tt95 is offline  
Old 08-13-03, 08:07 AM
  #8  
Addicted to Track
 
TailHappy's Avatar
 
Join Date: Jan 2002
Location: NC
Posts: 902
Likes: 0
Received 0 Likes on 0 Posts
Yeah, I'm just getting about 5 samples/second too. I'm only running my datalogit on a P120, so I thought maybe my laptop was the bottleneck, but now it sounds like that's not the case.
TailHappy is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Shainiac
Single Turbo RX-7's
12
07-17-19 02:20 PM
Jeff20B
1st Generation Specific (1979-1985)
73
09-16-18 07:16 PM


Thread Tools
Search this Thread
Quick Reply: AEM Who has an AEM wide band setup??


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: