Drive Cycle R

DTC	Item	Condition	Number of driving cycles on the detecting condition
P219A	BANK 1 AIR-FUEL RATIO IMBALANCE	-	2

WARNING: When performing the drive cycle R on the public road, be very careful of the traffic condition and the safe driving must be the high priority.

Check the data in condition column of table by using the Subaru Select Monitor or general scan tool.
NOTE:
- Subaru Select Monitor
  For detailed operation procedures, refer to "Current Data Display For Engine". Refer to ENGINE (DIAGNOSTICS) (W/O STI)>SUBARU SELECT MONITOR>OPERATION>DISPLAY CURRENT ENGINE DATA .
- General scan tool
  For detailed operation procedures, refer to the general scan tool operation manual.
Keep the engine at idle for at least 30 seconds in a fully warm-up condition.
Start the driving.
With the gear position in the 4th, take 10 seconds to accelerate from 1500 rpm to 4000 rpm.
Decelerate to 1500 rpm in the 4th gear position. (There is no restrictions to the deceleration duration and how to use the brake.)
Repeat 4) and 5) 10 times (end when the temporary code is acquired).

Courtesy of SUBARU OF AMERICA, INC.