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Originally Posted by FastOldGuy
When using a AEM with speed density
Does any one know which Snow alky/water injection controller works best? The varable controller, or the MAFT controller?
Also when using the gauge type AEM wide band O2 Where does the white wire hook to? [Or how do you hook it up to run with the AEM] When the wide band is hooked into the AEM do you just unhook the regular O2 sensors?
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The white wire from the AEM gauge type wideband is the 0-5V analog output. It should be run into the Lambda #1 input for the AEM. This is pin #56 for a 1st gen, and pin #76 for a 2nd gen. Make sure there are no other wires fed into this pin as it will alter the signal (iso cut the old signal wire). You can leave the 2nd O2 sensor hooked up but it will be basically useless anyway.
Use the O2 wizard to set the sensor type within the AEM software.
Then adjust the gain setting (with the sensor unhooked per the wideband instructions) so that the display and the AEM read the same values.
Also make sure the wideband gauge has a clean 12V signal and ground. After that you should be good to go.
