MEGAsquirt A place to collectively sort out this megasquirt gizmo

Aligning AEM WB ad MS3

Thread Tools
 
Search this Thread
 
Old 01-27-2014, 05:25 PM
  #1  
Junior Member
Thread Starter
 
carnut169's Avatar
 
Join Date: Feb 2012
Location: Atlanta, Ga
Posts: 280
Total Cats: 36
Default Aligning AEM WB ad MS3

I've tried to "Calibrate AFR Table" but the reading in VEAL is always .2 to .3 richer than the AEM gauge is displaying. IE- the gauge show 15 at idle, VEAL 14.7.

Is this normal? If not, how do I align it?
carnut169 is offline  
Old 01-27-2014, 06:09 PM
  #2  
Newb
iTrader: (1)
 
Boosted Escort's Avatar
 
Join Date: Jun 2010
Posts: 38
Total Cats: 1
Default

This has been covered quite a few time. Is your wideband grounded to the ecu ground?
Boosted Escort is offline  
Old 01-27-2014, 07:10 PM
  #3  
Junior Member
Thread Starter
 
carnut169's Avatar
 
Join Date: Feb 2012
Location: Atlanta, Ga
Posts: 280
Total Cats: 36
Default

Yes, both power and ground are through MS3
carnut169 is offline  
Old 01-28-2014, 07:20 AM
  #4  
Junior Member
Thread Starter
 
carnut169's Avatar
 
Join Date: Feb 2012
Location: Atlanta, Ga
Posts: 280
Total Cats: 36
Default

Anyone? Maybe I just adjust the target on the ms3 down (rich) to match? That seems off, but I suppose it would work.
carnut169 is offline  
Old 01-28-2014, 12:42 PM
  #5  
Elite Member
iTrader: (2)
 
thenuge26's Avatar
 
Join Date: Aug 2012
Location: Indianapolis
Posts: 3,267
Total Cats: 239
Default

Put in custom values for the 'Calibrate AFR Table' until MS reads the same as your gauge.
thenuge26 is offline  
Old 01-28-2014, 04:37 PM
  #6  
Junior Member
Thread Starter
 
carnut169's Avatar
 
Join Date: Feb 2012
Location: Atlanta, Ga
Posts: 280
Total Cats: 36
Default

Ok, thanks. It appears that it has two points- a single voltage and afr reading for each of the two points. Enough to calibrate the WB and the MS3?
carnut169 is offline  
Old 01-28-2014, 04:41 PM
  #7  
Junior Member
Thread Starter
 
carnut169's Avatar
 
Join Date: Feb 2012
Location: Atlanta, Ga
Posts: 280
Total Cats: 36
Default

Just found this:
Bought this for a combo boost/wideband. I will tell you this: THE ANALOG OUTPUT CAN BE TRICKY TO PROPERLY CALIBRATE IN YOUR TUNING SOFTWARE. The sensor is linear but ONLY between .5 and 4.5v NOT 0-5v. if your tuning software or datalogger can accept a fully custom calibration table you will have no issues. other software that assumes 0-5v linear may have some issues unless tweaked. When in doubt the gauge is right 99.9% of the time so rely on those logs if you have to.
carnut169 is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
nick470
MEGAsquirt
7
06-16-2017 01:53 PM
emilio700
Wheels and Tires
151
06-02-2017 02:36 PM
Rick02R
WTB
3
01-03-2016 07:18 PM



Quick Reply: Aligning AEM WB ad MS3



All times are GMT -4. The time now is 09:43 AM.