Fuel Pressure - Honda Civic Service Manual

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Fuel Pressure {'97 and later Models)
ReliGving
Before disconnecting tuel pipes or hoses, release pres-
sure from the system by loosening the 12 mm banjo
bolt on top of the fuel filter.
@
o Do not smoke whilo working on the fuel sy3lom.
Ksgp op€n flames or sparks away tlom Your work
arga.
. Be sure to relieve fuel pressule while the ignition
swhch is off.
1. Write down the frequencies for the radio's preset
buttons,
2.
Disconnect the battery negative cable from the bat-
tery negative terminal.
3.
Remove the fuel fill cap.
Use a box end wrench on the 12 mm banjo bolt at
the fuel filter while holding the fuel filter with anoth-
er wrench.
Place a rag or shop towel over the 12 mm banio bolt.
Slowly loosen the 12 mm banjo bolt one complete
t u r n .
4 .
I
12 mm BAtt O
BOLT
33 N.m (3.i1 kgf m,
25 tbf.f0
N O T E : R e p l a c e a l l t h e w a s h e r s w h e n e v e r t h e 1 2
mm banio bolt is loosened or removed.
Inspaqtion
1. Relieve fuel pressure.
2.
Remove the 12 mm banjo bolt from the fuel filter
while holding the fuel Jilter with another wrench
Attach the special tools.
3.
Start the engine
the fuel Pressure with the
engine idling and the vacuum hose of the fuel pres-
sure regulator disconnected from the fuel pressure
regulator and pinched lfthe engine will not start, turn
the ignition switch ON {ll), wait for two seconds, turn
it off, then back on again and read the fuel pressure'
Pr$3uro ehould be:
excepi 816A2 sngine:
260 - 310 kPa {2'7 - 3.2 kgf/cm" 38 - {6 Fi}
B16A2 engine:
27O -32O kPa P.8 - 3'3 kgf/cm', '10 - 47 psi)
4.
Reconnect vacuum hoso to the fuel pressure regulator'
Pre33ure 3hould be:
except B16A2 engin€:
2OO - 250 kPa {2.0 - 2'5 kgf/cm', 28 - 36 psi)
B16A2 engino:
210 - 260 kPa 121 - 2.6 ksf/cm', 30 - 37 psi)
lf the fuel pressure is not as specified, first check the
f u e l p u m p ( s e e p a g e 1 1 - 2 3 6 ) l f t h e t u e l p u m p i s o K ,
check tho following:
. l f t h e f u e l p r e s s u r e i s h i g h e r t h a n s p e c i f i e d ,
inspect for:
- Pinched or clogged fuel return hose or line.
-
Faulty fuel pressure regulator (see page 11-
2341.
. lf the fuel pressure is lower than specified, inspect
for:
- Clogged fuel filter.
- Faulty fuel pressure regulator (see page l1-
2341.
-
Fuel line leakage.
FUEL PRESSURE
ADAPTER BOLT, 12 mm
tguxt8-PD6-0101
CLAMP
REGULATOR
11-231