Honda S2000 Service Manual page 294

PGM-FI System
DTC Troubleshooting {cont'd)
17. Check for a DTC or Temporary DTC with the scan
r o o l .
ls DTC P0301, P0302, P0303 ot P0304, ol
Temporary DTC P1399 indicated?
YES'- Go to step 18.
NO - Intermiftent misfire due to bad contact in the
injector connector (no misfire at this time).I
18. Determine which cylinder had the misfire.
Does the misf ire occu in the other cylinder wherc
the injector was exchanged?
Y E S R e p l a c e t h e f a u l t y i n j e c t o r ( s e e p a g e l l -
8 7 ) . t
NO Go to step 19.
19. Turn the ignition switch OFF.
20. Disconnect the ignition coil 3P connector from the
problem cylinder.
2 1 . T u r n t h e i g n i t i o n s w i t c h O N ( l l ) .
22. Measure voltage between ignition coil 3P
connector terminal No. 3 and body ground.
IGNITION COIL 3P CONNECTOR
Wire side of
t e m a l e t e r m i n a l s
ls there battery voltage?
YES Go to step 23.
NO Repair open in the wire bet\iveen the No 4
C O I L ( 1 5 A ) f u s e a n d t h e i g n i t i o n c o i l . l
23. Turn the ignition switch OFF.
11 -6 6
24. Check for continuity between ignition coil 3P
connector terminal No. 2 and body ground.
IGNITION COIL 3P CONNECTOR
ls there continuity?
YES Go to step 25.
NO Repair open in the wire between the ignition
c o i l a n d G 1 0 1 . I
Disconnect ECM connector C (31P)
25.