Subaru 2002 IMPREZA Service Manual page 1270

DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
• RHD model
E21
1 2 3
Step
1 CHECK CURRENT DATA.
1)Start the engine.
2)Read the data of intake manifold absolute
pressure signal using Subaru Select Monitor or
OBD-II general scan tool.
NOTE:
•Subaru Select Monitor
For detailed operation procedure, refer to the
"READ CURRENT DATA FOR ENGINE".
<Ref. to EN(TURBO)-34, Subaru Select Moni-
tor.>
•OBD-II general scan tool
For detailed operation procedures, refer to the
OBD-II General Scan Tool Instruction Manual.
THROTTLE BODY
PRESSURE SENSOR
3
1
B83
B135
B83
1 2 3 4 5 6
Is the value more than 282 kPa
(2121 mmHg, 83.50 inHg)?
EN(TURBO)-110
E21
E2
B21
ECM
B21
1 2
1 2 3 4
10 11 12 13 14 15
5 6 7 8
20 21
9 10 11 12
13 14 15 16
17 18 19 20
Check
Go to step 9.
B135
4 5 6 7 8 9
3
16 17 18 19
22 23 24 25 26 27 28
Yes No
Go to step 2.
EN0968