Re: AEM Ultimate Resource Thread>>>>
had that problem with my FJO first make sure (and yes I mean to actually check them) all connections are tight and correct, then there is a formula for compensation with the gauge, I know with the FJO you do not want it to have anything to do with the AEM EMS except for the signal, as in using different power and ground for the control unit separate from the EMS
mine was off by almost a point and a half before I redid all the wiring to it
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