Fuel Pressure - Acura Integra 1998 Service Manual

The fuel supply system co
high pressure fuel pump, t
f u e l p r e s s u r e r e g u l a t o r . f
damper, and fuel delivery i
delivers pressure-regulated
cuts the luel delivery when
Fuel Supply System
System Description
consists of a fuel tank, in-tank
r, PGM-Fl main relay, fueffilter,
. f u e l i n j e c t o r s , f u e l p u l s a t i o n
y and return lines. This system
ed fuel to the fuel injectors and
r n t h q e n g i n e i s n o t r u n n i n g .
Fuel Pressure
Relieving
Before disconnecting fuel pipes or hoses, release pres-
s u r e f r o m t h e s y s t e m b y l o o s e n i n g t h e 1 2 m m b a n j o
bolt on top ol the fuel filter.
Do not smok€ while working on the tuel system,
Keep open flames or sparks away from you. work
arga.
Be sure to relieve fuel pressure while the ignition
swiich is ofl,
M a k e s u r e y o u h a v e t h e a n t i t h e f t c o d e f o r t h e
r a d i o , t h e n w r i t e d o w n t h e f r e q u e n c i e s f o r t h e
radio's preset buttons.
Disconnect the battery negative cable from the bat-
tery negative terminal.
R e m o v e t h e f u e l f i l l c a p .
Use a box end wrench on the 12 mm banjo bolt at
the fuel filter while holding the fuel filter with another
wrench.
Place a rag or shop towel over the
'12 mm banjo
bolt.
Slowly loosen the 12 mm banjo bolt one complete
t u r n .
1 1 - 1 1 8
I
NOTE| Replace the washers whenever the 12 mm banjo
bolt is loosened or removed.
lnsDection
1. Relieve fuel pressure.
2. Remove the 12 mm banjo bolt from the fuel filter
w h i l e h o l d i n g t h e f u e l t i l t e r w i t h a n o t h e r w r e n c h .
Attach the fuel pressure adapter bolt, 12 mm and
the special tool.
3.
Stan the engine. Measure the tuel pressure with the
engine idling and the vacuum hose of the fuel pres-
sure regulator disconnected from the fuel pressure
regulator and pinched. lf the engine will not start,
turn the ignition switch ON (ll), wait for two sec-
onds, turn it off, then back on again and read the
tuel pressure.
Pressuro should be:
Bl8Bl engire:
270 - 320 kP. (2.8 - 3.3 kgl/cm'.40 - 47 psi)
818C1, 818C5 engines:
320 - 370 kPa (3.3 - 3.8 kgt/cm'. 47 - g psi)
12 mm
FUEL FILTER