1996 HONDA CIVIC Workshop Manual

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Page 489 of 2189

HONDA CIVIC 1996 6.G Workshop Manual ldle Control System
ldle Speed Setting
Inspection/Adiustmenl
96, 97 Dl6Y5. 96 - 00 Dl5Y8 sngine with M/T
NOTE:
. Before setting the idle speed, check the following
items:- The MIL has not been repo

Page 490 of 2189

HONDA CIVIC 1996 6.G Workshop Manual t
t
I
96.97 D16Y5 engine with CVT,96 - 00 D16Y8 ongins
with A/T and96 - 00 Dl6Y7 €ngine
Adiust the idle speed using a Honda PGM Tester if pos-
sible. lf not, use the following procedure:
NOTEI
.

Page 491 of 2189

HONDA CIVIC 1996 6.G Workshop Manual ldle Control System
ldle Speed Setting (contdl
Inspeqtion/Adiustment
38 D16Y5 engine whh M/T,99 - 00 81642 engine
NOTE: Before setting the idle speed, check the follow-ing items;- The MIL has not be

ldle Control System
ldle Speed Setting (cont'dl
Inspeqtion/Adiustment
38 D16Y5 engine whh M/T,'99 - 00 81642 engine
NOTE: Before setting the idle speed, check the follow-ing items;- The MIL has not been reported on.- lgnition timing- Spark plugs- Air cleaner- PCV system
'1. Start the engine. Hold the engine at 3,000 rpm withno load (transmission in neutral) until the radiatorfan comes on, then let it idle.
Connect a tachometer.
Disconnect the IAC valve 2P connector and the EVAPpurge controlsolenoid valve 2P connector.
EVAP PURGECONTROLSOLENOID VALVE
lf the engine stalls, restart the engine with the accel-erator pedal slightly depressed. Stabilize the rpm at1.000, then slowly release the pedal until the engineidles.
Check idling in no-load conditions: headlights, blowerfan, rear defogger, radiator fan, and air conditionerare not operating.
ldl€ speed should be:
450 i 50 rpm
11-222
lf necessary, adjust the idle speed, by removrng lnecap and turning the idle adjusting screw.After adjusting the idle speed recheck the ignitlontiming (see section 23). lf it is out of spec, go backto step 4. |DLE
6. Turn the ignition switch OFF.
7. Reconnect the 2P connectors to the IAC valve andthe EVAP purge control solenoid valve, then do theECM reset procedure.
8. Restart and idle the engine with no-load conditionsfor one minute, then check the idle sDeed.ldle speed should bo:
USA:
D16Y5 engine: 670 i 50 rpm
81642 engine: 700 i 50 rpm
Canada:
81642 engine: 750 t 50 rpm
NOTE: lf the idle speed increases to 8lO t 50 rpm,this means the EVAP system is purging the canister.To stop the purging temporarily, raise the enginespeed above 1,000 rpm with the accelerator pedal,
then slowly release the pedal.
9. ldle the engine for one minute with headlights(Low) ON. and check the idle speed.
ldle speed should be:
750 i 50 rpm
10. Turn the headlights off. ldle the engine for oneminute with heater fan switch at Hl and air condi-tioner on, then check the idle soeed.ldls speed should be:
810 t 50 rpm
lf the idle speed is not within specification, seeSymptom Chart on page 11-84.

Page 492 of 2189

$HONDA CIVIC 1996 6.G Workshop Manual \ I 98 - 0O D16Y5 ongine with CvT Adjust the idle speed using a Honda PGM Tester if pos- sible. lf not, use the following procedure: NOTE: . Leave the IAC valve connected. . Before s€tting the idle$

\
I
'98 - 0O D16Y5 ongine with CvT
Adjust the idle speed using a Honda PGM Tester if pos-
sible. lf not, use the following procedure:
NOTE:
. Leave the IAC valve connected.
. Before s€tting the idle speed, check the following
rtems:- The MIL has not been reported on.
- lgnition timing
- Spark Plugs- Air clean€r
- PCV svstem
'1. Connect a tachometer.
2. Stan the engine. Hold the engine at 3,000 rpm w'th
no load (transmission in E or E] position) until the
radiator Jan comes on, then let it idle.
3. Check the idle speed under no-load conditions:
head lights, blower fan, rear defogger, radiator fan,
and air conditioner are not operatlng.
ldlo spaod ehould bo: 700 t 50 rpm
. lf the idle speed is within the specification, the
procedure is comPlete.
. lf the idle sDeed is out of specitication, 9o to step 4'
4. tf the idle speed is 810 1 50 rpm, this means the
EVAP system is purging the canister. To stop the
purging temporarily, raise the engine speed above
l,OO0 rgm with the accelsrator pedal. Slowly release
the pedal. and rscheck the idl€ speed.
. tf the idle speed is within the specificstion, the
Drocedure is comPlete.
. lf the idle sp€ed is out of spocification, go to step 5.
5. Disconnect th€ EVAP purgs control solenoid valve
2P connector.
EVAP PURGECONTROL
6. Remove the cap and turn the idle adiusting screw
1/2-turn clockwise or counterclockwlse
IDLE
7.After turning the idle adjusting screw 1/2-turn, check
the idl€ speed again. lf it is out of spec, turn the idle
adjusting screw 1/2-turn again.
NOTE: Do not turn the idle adjusting screw more
than 1/2-turn without checking the idle speed.
Turn the ignition switch OFF. Reconnect the EVAP
purge control solenoid valve 2P connector' then do
the ECM reset Procedure.
Start the engine. ldle the engine for one minute with
heater fan switch at Hl and air conditioner on, then
check the idle speed.
ldle spaed should be:
810 t 50 rpm (in El or E Posiiion)
lf the idle speed is not within specification, see
Svmptom Chart on Page 11-84.
9.
SOLENOID VALVE
11-223

Page 493 of 2189

HONDA CIVIC 1996 6.G Workshop Manual Fuel Supply System
Fuel Lines
NoTE: Check fuel system lines, hoses, fuel filter, and other components lor damage, leaks and deterioration, and replaceif necessary.
(2.2 kgt.m, 16lbf.ft)(D16Y5 engine:

Page 494 of 2189

HONDA CIVIC 1996 6.G Workshop Manual I96 - 98 models:
NOTE: Check all hose clamps and retighten if necessarY.
M
/vFUELFILTER
PRESSUREREGULATOR
IFUELTANKFUELGAUGESENDINGUNITBASE GASKETReplace.
Clamp In rhe middle
@
Clamp in the middle
10

Page 495 of 2189

HONDA CIVIC 1996 6.G Workshop Manual Fuel Supply System
Fuel Lines (contdl
.99 - 00 models:
NOTE: Check all hose clamps and retighten if necessary.
: Do not disconnect the hose from the pipe.
ONBOARD REFUELING VAPORBECOVERY IORVRIVENT

Page 496 of 2189

HONDA CIVIC 1996 6.G Workshop Manual I
Fuel Tube/Ouick-Gonnect Fittings
Precautions
!@ Do not smoke while working on the fuel
system, Keep open flames away from your work a.ea
The fuel tube/quick-connect fittings assembly connects
the i

I
Fuel Tube/Ouick-Gonnect Fittings
Precautions
!@ Do not smoke while working on the fuel
system, Keep open flames away from your work a.ea'
The fuel tube/quick-connect fittings assembly connects
the in tank fuel pump with the fuel feed pipe. For remov-
ing or installing the fuel pump and fuel tank, it is neces-
sary to disconnect or connect the quick-connect fittings.
Pay attention to lollowing:
. The fuel tube/quick-connect fittings assembly is not
heat-resistant; be careful not to damage it during
welding or other heat-generating procedures
. The fuel tube/quick-connect fittings assembly is not
acid-proof; do not touch it with a shop towel which
was used for wiping battery electrolyte. Replace the
fuel tube/quick-connect fitlings assembly if it came
into contact with electrolyte or something similar.
. When connecting or disconnecting the fuel tube/
quick connect liltings assembly, be careful not to
bend or twist it excessively. Replace it if damaged
A disconnected quick-connect fitting can be reconnecled,
but the retainer on the mating pipe cannot be reused
once it has been removed from the pipe. Replace the
retatner wnen
. Replacing the fuel pump.
. Replacing the fuel leed pipe.
. lt has been removed lrom the PiPe.. lt is damaged.
ACCESS PANEL
I
Disconnestion
!@ Do not smoke while working on the luel
system. Keep open llames away lrom youl work area.
1. Relieve fuel pressure (see pages 11'230,2311.
2. Check the tuel quick-connect tittings for dirt, and
clean if necessary.
3. Hold the connector with one hand and press down
the retainer tabs with the other hand, then pull the
connector off.
NOTE:
o Be carelul not to damage the pipe or other pans
Do not use tools.
. lf the connector does not move, keep the retainer
tabs pressed down, and alternately pull and push
the connector until it comes off easily.
. Do not remove the retainer from the pape; once
removed, the retainer must be replaced with a
new one.
LOCKING PAWL
BETAINER TAB
CONNECTOR
Check the contact area o{ the pipe for dirt and dam-
age.
. lf the surface ls dirty, clean it.
. lf the surface is rusty or damaged, replace the
fuel pump or fuel feed piPe.
4.
(cont'd)
11-227
PIPE

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