AEM 30-6905 Universal Programmable EMS-4 - Manual (Page 250)

Page 250 of 279 EMS-4 Install and Tuning Guide_Rev 1.6
Channels (can be viewed or logged)
O2 FB Delay
Units: Seconds Description: Time delay for O2 feedback operation after engine start.
O2 Target
Units: AFR Description: Air fuel ratio that directly corresponds with the AFR Map.
O2 #1
Units: AFR Description: Scaled air fuel ratio from Lambda #1.
O2 #1 Target Error
Units: AFR Description: Difference between the actual air fuel ratio and the targeted air fuel ratio
from Lambda #1.
O2 #1 FB Value
Units: Fuel %Description: The current amount of fuel implemented in order to reach the air fuel
ratio target.
O2 #2
Units: AFR Description: Scaled air fuel ratio from Lambda #2.
O2 #2 Target Error
Units: AFR Description: Difference between the actual air fuel ratio and the targeted air fuel ratio
from Lambda #2.
O2 #2 FB Value
Units: Fuel %Description: The current amount of fuel implemented in order to reach the air fuel
ratio target.
O2 FB Cleared
Units: On/Off Description: Displays if and when the O2 feedback has cleared its memory and
resets back to zero when the closed loop conditions are met again.
O2 FB Frozen
Units: On/Off Description: Displays if and when the O2 feedback has saved its previous fuel
correction to reinstate when the closed loop conditions are met again.
O2 FB Pro Gain
Units: Multiplier Description: Displays the current gain from the O2 FB Pro Gain table.
O2 FB Int Gain
Units: Multiplier Description: Displays the current gain from the O2 FB Int Gain table.
O2 FB Status
Units: Binary Code Description: Displays the current status of the O2 feedback function in binary