diff --git a/ROMFS/px4fmu_common/init.d-posix/px4-rc.simulator b/ROMFS/px4fmu_common/init.d-posix/px4-rc.simulator
index 0a0a21cbf5..8121f3914c 100644
--- a/ROMFS/px4fmu_common/init.d-posix/px4-rc.simulator
+++ b/ROMFS/px4fmu_common/init.d-posix/px4-rc.simulator
@@ -167,6 +167,12 @@ elif [ "$PX4_SIM_MODEL" = "jmavsim_iris" ] || [ "$(param show -q SYS_AUTOSTART)"
 
 else
 	# otherwise start simulator (mavlink) module
+
+	# EKF2 specifics
+	param set-default EKF2_GPS_DELAY 10
+	param set-default EKF2_MULTI_IMU 3
+	param set-default SENS_IMU_MODE 0
+
 	simulator_tcp_port=$((4560+px4_instance))
 
 	# Check if PX4_SIM_HOSTNAME environment variable is empty
diff --git a/ROMFS/px4fmu_common/init.d-posix/rcS b/ROMFS/px4fmu_common/init.d-posix/rcS
index e7a6ae984d..0084a6701e 100644
--- a/ROMFS/px4fmu_common/init.d-posix/rcS
+++ b/ROMFS/px4fmu_common/init.d-posix/rcS
@@ -164,10 +164,6 @@ param set-default COM_RC_IN_MODE 1
 # Speedup SITL startup
 param set-default EKF2_REQ_GPS_H 0.5
 
-# Multi-EKF
-param set-default EKF2_MULTI_IMU 3
-param set-default SENS_IMU_MODE 0
-
 param set-default IMU_GYRO_FFT_EN 1
 param set-default MAV_PROTO_VER 2 # Ensures QGC does not drop the first few packets after a SITL restart due to MAVLINK 1 packets