Vacuum Hoses And Connections Test - Honda S2000 Service Manual

28.
29.
ls there continuity?
YES- Go to step 28.
NO- Replace the EVAP canister vent shut valve (A)
a n d o - r i n g ( B ) . I
Disconnect ECM connector A (32P)
Check for continuity between EVAP canister vent
shut valve 2P connector terminal No. 2 and body
g r o u n d .
EVAP CANISTER VENT
SHUT VALVE 2P CONNECTOR
vsv
{LT GRN/WHT)
Wire side ol temale terminals
ls there continuity?
YES- Repair short in the wire between the EVAP
canister vent shut valve and the EcM {A4) I.
NO-Substitute a known-good ECM and recheck
(see page 1 1-5). lf the symptom/indication goes
a w a y , r e p l a c e t h e o r i g i n a l E C M . I
I
Z
r1
30.
Vacuum Hoses and Connections Test
Perform the fuel tank vapor control valve test {see
p a g e 1 1 - 4 ) ,
lsthetuel tank vapor control valveOK?
YES-Go to step 31.
NO - Replace the fuel tank vapor control valve.I
Tighten the fuel cap 3
"clicks". then monitor the
FTP readings with the Honda PGM Tester.
Start the engine, and let it idle for 5 minutes.
ls the reading abov€ 4 mmHg pressure or below
4 mmHg vacuum?
YES-Substitute a known-good ECM and retest. lf
the symptom/indication goes away, replace the
o r i g i n a l E C M . I
NO Check the following parts for leaks: I
. Fuel tank (A)
. F u e l f i l l c a p ( B )
. F u e l f i l l p i p e ( C )
. F u e l t a n k v a p o r c o n t r o l v a l v e ( D )
. F u e l t a n k v a p o r r e c i r c u l a t i o n v a l v e ( E )
. Fueltank vapor recirculation tube (F)
. F u e l t a n k v a p o r s i g n a l t u b e ( G )
. Fuel tank vapor control vent tube (H)
- Repair or replace parts as needed,
5 t .
32.
33,
Check the FTP sensor reading.
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