Subaru IMPREZA GD 2007 Series Manual page 1515

asieps_tobira_IM_US.book 184 ページ ２０１２年１月１７日 火曜日 午後３時４８分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
ENGINE (DIAGNOSTICS)
Step
1 CHECK SECONDARY AIR COMBINATION
VALVE.
Inspection of the pipe between the secondary
air combination valve and cylinder head.
2 CHECK SECONDARY AIR COMBINATION
VALVE.
Race the engine at 2,000 rpm to check whether
or not the exhaust leak is heard.
Check
Is there damage or disconnec-
tion of the pipe?
Is there any exhaust leak?
EN(STI)(diag)-184
Yes No
Replace the pipe Go to step 2.
between second-
ary air combination
valve and cylinder
head.
Replace the pipe Repair poor con-
between second- tact of the ECM
ary air combination connector.
valve and cylinder
head.