Just wanted to confirm if I have a AEM 6in1 UEGO controller, do I go to 'tools', 'calibrate AFR table', and under EGO Sensor I select 'AEM Linear AEM-30-42xx'

Then write to controller?
Or do I have to mess with the custom linear wb at all?


Thanks

 

Your controller is part number 30-4100. Does that fit 30-42xx?

http://forums.corral.net/forums/mega...ompatible.html

 

I was thinking all aem would have same value.
So should I use custom linear wb and plug in the values for point 1 & 2?

 

Ah thanks for the link.

 

and what would those two values be?

 

1.09v - 12.18
4.06V - 18.10

 

I am sure I did mine wrong, or the hard way. I modified the aemWBo2.inc file in the TunerStudioProjects/MyCar/inc folder

#AEM WideBand O2 Sensor
#Volt AFR
0.000 8.168
0.020 8.200
0.039 8.230
0.059 8.261
0.078 8.291
0.098 8.321
0.118 8.351
0.137 8.380
0.157 8.409
0.176 8.437
0.196 8.466
0.216 8.494
0.235 8.521
0.255 8.549
0.275 8.577
0.294 8.603
0.314 8.630
0.333 8.655
0.353 8.682
0.373 8.708
0.392 8.733
0.412 8.758
0.431 8.782
0.451 8.808
0.471 8.833
0.490 8.856
0.510 8.881
0.529 8.904
0.549 8.928
0.569 8.951
0.588 8.974
0.608 8.997
0.627 9.019
0.647 9.042
0.667 9.065
0.686 9.087
0.706 9.109
0.725 9.130
0.745 9.152
0.765 9.174
0.784 9.195
0.804 9.217
0.824 9.238
0.843 9.258
0.863 9.279
0.882 9.300
0.902 9.320
0.922 9.341
0.941 9.361
0.961 9.382
0.980 9.401
1.000 9.421
1.020 9.442
1.039 9.461
1.059 9.481
1.078 9.500
1.098 9.520
1.118 9.540
1.137 9.559
1.157 9.579
1.176 9.597
1.196 9.617
1.216 9.637
1.235 9.655
1.255 9.675
1.275 9.695
1.294 9.713
1.314 9.733
1.333 9.751
1.353 9.771
1.373 9.790
1.392 9.809
1.412 9.828
1.431 9.847
1.451 9.867
1.471 9.886
1.490 9.905
1.510 9.925
1.529 9.943
1.549 9.963
1.569 9.983
1.588 10.002
1.608 10.022
1.627 10.041
1.647 10.061
1.667 10.082
1.686 10.101
1.706 10.121
1.725 10.141
1.745 10.161
1.765 10.182
1.784 10.202
1.804 10.223
1.824 10.244
1.843 10.264
1.863 10.286
1.882 10.306
1.902 10.328
1.922 10.350
1.941 10.370
1.961 10.393
1.980 10.414
2.000 10.436
2.020 10.459
2.039 10.481
2.059 10.504
2.078 10.526
2.098 10.549
2.118 10.573
2.137 10.596
2.157 10.620
2.176 10.643
2.196 10.667
2.216 10.692
2.235 10.716
2.255 10.741
2.275 10.767
2.294 10.791
2.314 10.817
2.333 10.842
2.353 10.869
2.373 10.896
2.392 10.921
2.412 10.949
2.431 10.975
2.451 11.003
2.471 11.032
2.490 11.059
2.510 11.088
2.529 11.116
2.549 11.145
2.569 11.175
2.588 11.204
2.608 11.234
2.627 11.264
2.647 11.295
2.667 11.327
2.686 11.357
2.706 11.390
2.725 11.421
2.745 11.454
2.765 11.488
2.784 11.520
2.804 11.554
2.824 11.589
2.843 11.622
2.863 11.658
2.882 11.692
2.902 11.728
2.922 11.765
2.941 11.801
2.961 11.838
2.980 11.875
3.000 11.913
3.020 11.952
3.039 11.990
3.059 12.030
3.078 12.068
3.098 12.109
3.118 12.151
3.137 12.190
3.157 12.233
3.176 12.274
3.196 12.317
3.216 12.361
3.235 12.403
3.255 12.448
3.275 12.493
3.294 12.537
3.314 12.584
3.333 12.628
3.353 12.676
3.373 12.724
3.392 12.771
3.412 12.820
3.431 12.867
3.451 12.918
3.470 12.966
3.490 13.018
3.510 13.070
3.529 13.120
3.549 13.173
3.569 13.227
3.588 13.279
3.608 13.335
3.627 13.388
3.647 13.444
3.667 13.501
3.686 13.556
3.706 13.614
3.725 13.671
3.745 13.730
3.765 13.791
3.784 13.849
3.804 13.910
3.824 13.973
3.843 14.033
3.863 14.096
3.882 14.158
3.902 14.223
3.922 14.289
3.941 14.352
3.961 14.419
3.980 14.484
4.000 14.552
4.020 14.622
4.039 14.688
4.059 14.759
4.078 14.827
4.098 14.900
4.118 14.973
4.137 15.043
4.157 15.118
4.176 15.190
4.196 15.266
4.216 15.343
4.235 15.417
4.255 15.495
4.275 15.575
4.294 15.651
4.314 15.732
4.333 15.810
4.353 15.893
4.373 15.976
4.392 16.056
4.412 16.141
4.431 16.223
4.451 16.310
4.471 16.398
4.490 16.482
4.510 16.571
4.529 16.657
4.549 16.748
4.569 16.840
4.588 16.929
4.608 17.023
4.627 17.113
4.647 17.208
4.667 17.305
4.686 17.397
4.706 17.496
4.725 17.590
4.745 17.690
4.765 17.792
4.784 17.889
4.804 17.992
4.824 18.096
4.843 18.195
4.863 18.301
4.882 18.403
4.902 18.511
4.922 18.620
4.941 18.724
4.961 18.835
4.980 18.941
5.000 19.054

 

Entering the 2 values under custom I'm about 1.0 off.
If i use aem linear I'm about .7 off.
I dont see any inc file in the inc folder.
Where else would it be and how do I modify it?
Is your readings pretty accurate?

 

bump

 

anyone?

 

A lot of AEMs have pretty sloppy tolerances on their output; you often have to tinker with the settings to get things to read correctly. You may have to measure its output to find out what the real curve is.

 

Whats the easiest method to measure without a regulated power supply?
Could the variation also stem from a bad ground from either the aem wb and the ms2?

 

It's possible a ground offset has made the problem even worse, yes.

Your best bet if the ground offset problems are fixed is to just use a volt meter and take notes on what it's reading vs what the gauge is displaying.

 

I think I had the wrong idea about taking the reading.
I thought you meant using a power source of 1v and 4v and take the reading from the gauge. Thought about it more and realized to just take the reading off the white wire. Now I just need it to stay steady enough for me to get an accurate reading.

 

Originally I had both ground from WB15 going to 2a.
I took the other ground from wb15 along with the ground from the wb and connected them to 2c. The readings from the wb and the reading from TS were closer.

I tried to take a couple of readings but it kept jumping around so it's probably not too accurate. After putting in those readings, along with the new grounds, I'm .1 off. The closest I've been yet.

I took a video of the wb along with a volt meter. Hopefully, I'll be able to get more accurate readings and get rid of the .1 variance as well.

 

At what afr did you grab your points. I had a strange event where I used to be .3 off at the most. I changed to TS 1.37 and ms3 beta 20 and suddenly I was off by about .7.

I moved my AEM ground to the signal ground instead of the chassis ground. This has me at .2 max using the default 42xx linear calibration.

 

I'm currently using the default 42xx.
I moved both the db15 and wb to signal ground and got the change.

I looked at the video I took of the wb and voltage.
Jotted down some number and they look nothing like the charts numbers for gasoline.
More like the numbers for CNG. But then again there might be a delay from what's showing on wb and what's showing on meter or vise versa.