Dtc P0411: Secondary Air Injection System Incorrect Flow - Honda S2000 Service Manual

DTC P0411: SecondaryAir Injection System
lncorrect Flow
1 . R e s e t t h e E C M ( s e e p a g e 1 1 - 4 ) .
2. Make sure the engine coolant temperature is over
3 2 " F ( 0 ' C ) a n d b e i o w 1 5 8 " F ( 6 0 " C ) w i t h t h e s c a n
I O O I .
3. Start the engine. While the air pump operates, let
t h e e n g i n e i d l e w i t h n o l o a d ( i n n e u t r a l ) f o r a t l e a s t
1 0 s e c o n d s .
4. Check for a Temporary DTC with the scan tool.
ls Temporary DTC P0411 indicated?
YES Go to step 5.
NO lntermittent failure, system is OK at this time.
Check for poor connections or loose terminals at
the air control valve vacuum control solenoid valve
a n d a t r h e E c M . l
5. Turn the ignition switch OFF.
6. Check the vacuum lines of the air pump system for
misrouting, leakage. breakage, and clogging.
Are the vacuum Iines OK?
YES Go to step 7.
N O R e p a i r o r r e p l a c e v a c u u m l i n e s a s
necessary.l
7 . R e s e t t h e E C M ( s e e p a g e 1 1 - 4 ) .
8. Make sure the engine coolant temperature is over
32 'F (0 'C) and below 158 "F (60 "C) with the scan
t o o l .
1 0 .
9. Disconnect the vacuum hose from the air control
valve (A), and connect a vacuum gauge to the hose.
Start the engine. While the air pump operates, let
the engine idle with no load (in neutral).
ls there vacuum while the air pump operates?
Y E S G o t o s t e p 1 1 .
NO Go to step 17.
Turn the ignition switch OFF.
Disconnect the air control valve vacuum control
solenoid valve 2P connector.
Check for the continuity between the air control
valve vacuum control solenoid valve 2P connector
terminal No. 2 and body ground.
AIR CONTROL VALVE VACUUM CONTROL
SOLENOID VALVE 2P CONNECTOR
Wire side ol lemale terminals
ls therc continuity?
YES Go to step 14.
NO Replace the air control valve vacuum control
s o l e n o i d v a l v e . !
(cont'd)
1 1 .
1 1 - 1 5 3