Honda S2000 Service Manual page 334

FuelSupply System
8 .
9 .
Fuel Pressure Test {cont'd)
Remove the fuel pulsation damper from the fuel
r a i l .
Attach the fuel pressure gauge attachment and fuel
pressure gauge.
07vaJ-0040100
1 1 ,
Disconnect the vacuum hose (A) from the fuel
pressure regulator (B) and pinch it closed with a
c l a m p ( C ) .
Reconnect the negative battery cable, then start
t h e e n g i n e a n d l e t i t i d l e .
. lf the engine starts, go to step 13
. lf the engine does not stan, go to step 12.
C h e c k t o s e e i f t h e t u e l p u m p i s r u n n i n g : r e m o v e
t h e f u e l f i l l c a p a n d l i s t e n t o t h e f u e l f i l l p o n w h i l e
an assistant turns the ignition switch ON (ll), you
should hear the pump run for about 2 seconds
w h e n t h e i g n i t i o n t u r n e d O N ( l l ) .
. lf the fuel pump runs, go to step 13.
. lf the fuel pump does not run, test it (see page
11-107J.
Read the pressure gauge (with the fuel pressure
regulator vacuum hose disconnected and clamped).
The pressure should be 320 - 370 kPa
{3.3 - 3.8 kgficm', 47 - 54 psi).
. l f t h e p r e s s u r e i s O K a n d t h e e n g i n e i s r u n n i n g ,
go to step 14. lf the engine is not running, repair
t h e c a u s e , t h e n c o n t i n u e t h i s t e s t .
. l f t h e p r e s s u r e i s o u t o f s p e c , g o t o s t e p 1 4 .
1 0 .
1 2 .
1 1 - 1 0 6
1 4 . W i t h t h e e n g i n e r u n n i n g , u n p i n c h a n d r e c o n n e c t
the vacuum hose and read the gauge again.
The pressure should be 260 - 310 kPa
12.7 - 3.2 kgllcm',38 - 46 psi).
. l f t h e f u e l p r e s s u r e i s O K , t h e t e s t i s c o m p l e t e .
. l f t h e p r e s s u r e i s o u t o f s p e c , g o t o s t e p 1 5 .
'15.
Disconnect the vacuum hose from the pressure
regulator again while you watch the pressure
gauge. The pressure should rise when you
disconnect the hose,
. l f t h e p r e s s u r e d i d n o t r i s e , r e p l a c e t h e f u e l
pressure regulator (see page '1 '1-1 15).
' lf the pressure rises, but all your readings were
lower than specified, check for a clogged fuel
filter and for leaks in the fuel lines.
. lf the pressure rises, but all your readings were
higher than specified, check for a pinched or
clogged fuel return hose or line.
16. Reconnect the vacuum hose, remove the pressure
gauge, and reinstall the fuel pulsation damper with
a new washer. Tighten the fuel pulsation damper to
22 N.m (2.2k9f.m, 16 lbf.ft).
NOTE: Disassemble and clean the fuel pressure
gauge attachment thoroughly after use.