Does the fuel gauge run off the AEM or is it just wired directly to sender? '01 car.

Reason I ask is - ever since installation of KW SC and AEM, my fuel gauge never reads less than 2 bars and my low fuel light never comes on anymore.

Ran out of gas once.

IS the solution a simple re-calibration of the EMS or does the sender need to be taken out and physically tweaked?

Thanks