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AEM Help with aem ems4 in 1G

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Linroy Simon

Probationary Member
5
1
Dec 1, 2020
Houston, Texas
Car came with a aem v1 and while the car was down for a cable seals job i decided to change out to an aem ems4. the engine is now back together and I’m trying to calibrate the ecu but i can’t get the ecu to turn stat sync on. I am getting an rpm signal so i think the cas is working. Not sure what else can be the problem. Another thing with the key in the on position the battery n oil lights don’t come on
 

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Are you running with AEMPro? If so, you have to switch to AEMTuner and manually copy parameters if the car was running good before. And see if the stat sync would get ON while cranking.
 
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