1990 MITSUBISHI SPYDER check engine

17-70 CONTROL (Turbo) and Engine>
PURGE CONTROL SYSTEM CHECK (PURGE FLOW CHECK)
ENGINE (TURBO)>
Intake manifold plenum
EVAP purgesolenoid(ON: OPEN)
Nipple
Purgecontrolvalve
Check valve Air cleaner
Air intake hose
Purge flow
indicator
700)
1.Disconnect the purge hose from the evaporative emis sion
(EVAP) canister, and connect the special tool (purg e flow
indicator) between the EVAP canister and the purge hose.
2. The vehicle should be prepared as follows before the
inspection and adjustment.
lEngine coolant temperature: F)
l Lights, cooling fan and accessories: OFF
l Transaxle: Neutral (A/T for
range)
3. Run the engine at idle for 3 minutes or more.
Revision

ENGINE AND EMISSION CONTROL
4. Check the purge when
carried out several times. .
Standard value: Momentarily 20 (2.5 SCFH)
or more
5.If the purge flow volume is less thah the standard value,
check it again with the vacuum hose disconnected from
the EVAP canister.
If the purge flow volume is below the standard values,
check for blockages in the vacuum port and vacuum h ose,
and also check the evaporative emission purge solen oid
and the purge control valve.
If the purge flow volume is at the standard value, replace
the EVAP canister.
TSB Revision

(Turbo) and Engine>
PURGE CONTROL CHECK (PURGE FLOW CHECK)
ENGINE>17300140272
IntakeplenumThrottle body
From air cleaner
OFF
ON EVAP purge
solenoid
(ON: OPEN)
hose IPurge flow
indicator
Revision
EVAP canister
Disconnect the purge hose from the evaporative emis sion
(EVAP) canister, and connect the special tool (purg e flow
indicator) between the EVAP canister and the purge hose.
2. The vehicle should be prepared as follows before the
inspection and adjustment.
lEngine coolant temperature:
l Lights, cooling fan and accessories: OFF
l Transaxle: Neutral (A/T for
range)
3. Run the engine at idle for 4 minutes or more.

ENGINE AND EMISSION
4. Check the purge when sudden is
carried out several’
value: (2.5 SCFH)
more , __
5.If the purge flow, volume ‘is than the value,
check it again with the
hose from
the EVAP canister.
If the purge flow volume the
check for blockages in the vacuum
and also check the evaporative
and the purge control
If the purge flow volume is at the value, replace
the EVAP canister.
Revision

Engine (Turbo) Engine>
Vacuum
Enginespeed
TSB Revision
Vacuum
Engine speed
PURGE VACUUM CHECK
(Turbo)>
1. Disconnect the vacuum hose from the throttle body purge
vacuum nipple and connect a hand vacuum pump to
t h e n i p p l e .
2. Vacuum is kept constant despite the increased en gine
speed.
NOTE
If no vacuum is generated, the throttle body purge port
may be clogged.
Engine (Turbo)>
1. Disconnect the vacuum hose from the intake manif old
purge vacuum nipple and connect a hand vacuum pump
to the nipple.
2. Vacuum is kept constant despite the increased en gine
speed.
NOTE
If no vacuum is generated, the intake manifold purge
port may be clogged.

Engine (Turbo)>
Engine (Turbo)>
Engine>
.
EVAPORATIVE EMISSION PURGE --SOLENOID
CHECK
NOTE
When disconnecting the vacuum hose, place an
mark on it proper reconnection.
1. Disconnect the vacuum hose from the
valve.
2. Disconnect the harness connector.
3.Connect a hand vacuum pump to nipple (A) of the sol enoid’
valve (refer to the at left).
4. Check air-tightness by applying a vacuum with vo ltage
applied directly from the battery to the purge control sole-
noid. valve.
Battery voltage
Applied Not applied
Vacuum leaks
Vacuum
, .
5. Measure the resistance between the terminals of the
solenoid valve.
Standard value: 36-44 [at
TSB Revision

AND C O N T R O L (Turbo) and Engine>
Valve
PURGE CONTROL VALVE Engine
1. Remove the purge control valve.
2. Connect a hand vacuum pump to the vacuum nipple of the purge control valve.
3.Apply a vacuum of 53 (16 and check
ness.
4.Blow in air lightly from the evaporative emission c anister
side nipple and check conditions as follows.
Hand vacuum pump vacu-
umNormal condition
0 (0 (No vacuumAir does not blow through
is applied)
27
(8.0 or more Air blow through
5. Connect a hand
vacuum pump to the positive pressure
nipple of the purge control valve.
6.Apply a vacuum of 53 (16 and check
ness.
Revision
VOLUME AIR FLOW SENSOR, ENGINE COOLANT
TEMPERATURE SENSOR AND INTAKE AIR
TEMPERATURE SENSOR
Refer to GROUP Troubleshooting.
AIR CONDITIONING SWITCH
Refer to GROUP 55 Air Conditioning Switch.

EVAPORATIVE EMISSION CANISTER/FUEL TANK PRESSURE
RELIEF VALVE/PURGE CONTROL VALVE
REMOVAL AND INSTALLATION
Engine (Turbo)>
Pre-removal and Post-installation OperationBattery Removal and Installation
Removal steps
1. Battery bracket
2. Shift and con-
nection3. Vapor hose4. Connector5. Vapor hose 6. Fuel tank pressure relief 7. Vapor hose 8. Vapor hose
9. Check valve
1 0 . C l a m p ’
hose
12. Purge control
13. Evaporative canister
14. Evaporative emission canister
e r a s s e m b l y
TSB Revision