1990 MITSUBISHI SPYDER light

ENGINE AND EMISSION CONTROL Auto-cruise Control System
CONTROL COMPONENT
STOP LIGHT SWITCH
MeasurementFor stop lightFor
conditionscircuitcontrol circuit
terminal No.
terminal
2314
When brake pedal
depressed.0
When brake pedal notdepressed.0 0
CLUTCH PEDAL POSITION SWITCH
Engine (Turbo) and Engine
Measurement conditions
When clutch pedal depressed.Terminal No.
12
0
When clutch pedal not depressed.
PARK/NEUTRAL POSITION SWITCH POSITION)
Engine (Turbo) and Engine>
Measurement Terminal No.Iconditions Engine (Turbo)7 8I
Engine
Selector lever is not at position
Selector lever is at
position 5
8
0
AUTO-CRUISE VACUUM PUMP (Turbo)
and
Engine>
1. Disconnect the vacuum hose from
vacuum
pump and connect a vacuum the vacuum pump.
2. Disconnect the electric vacuum pump connector.
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17-42ENGINE AND EMISSION CONTROL Auto-cruise Control System
CAUTION:Beforeremoval of air bag module and clock spring, refer t o the following sections:GROUP SRS Service Precautions.GROUP Air Bag Modules Clock Spring.
5.9 Nm4.3
41Nm30
2 8
Auto-cruise control switch and
clock spring
steps
27. Air bag module (Refer to GROUP
Bag
Modules and Clock Spring.)
28. Auto-cruise control
29. Steering wheel
30. Steering column upper cover
31. Steering column lower cover
l
under cover (Refer to
GROUP Panel.)
32. Clock spring (Refer to GROUP
Bag
Modules and Clock Spring.) 3 8
Sensor removal steps
33. Throttle position sensor
Engine (Turbo) and Engine>
34. Transaxle range switch
Engine (Non-turbo) 35. Park/neutral position switch Engine AA and Engine
36. Stop light switch
37. Clutch pedal position switch
Engine (Turbo) M/T and Engine 38. Vehicle speed sensor Revision

(Turbo) and Engine>
VACUUM HOSES
VACUUM HOSE ROUTING
Engine (Turbo)>To evaporative emission
(EVAP) canisterEGR solenoidEvaporative emissionFuel pressure(EVAP) purge solenoid solenoid
I
Purgecontrol valve
By-pass valveFuel pressure regulator
Revision
Turbocharger waste
gate solenoidgate actuator
Front
L: Light Blue Red Black
G: Green
Yellow
W: White

Engine and
VACUUM CIRCUIT DIAGRAM
Engine (Turbo)>intake air
Throttle bodyL: Light Blue
Red
B: Black
G: Green YellowW: WhiteTo combustion
chamber
Check
EVAP(ON: open)
EVAP canister
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Air
Turbocharger wastegateTurbochargerwasteate solenoid
ON: open)

(Turbo) and
Engine (Turbo)>
Thin stick(Extremely light)
Vacuum side
Thin stick
PCV valve
POSITIVE VENTILATION VALVE”
CHECK
Hold the PCV valve with the vacuum side
Using light pressure depress the PCV valve spring
the thin stick mm. Release pressure on stick
to see if the PCV valve spring will lift
stick to its
original position.
2.If the stick returns quickly to its original positi on,
valve is OK. If the stick does not return quickly, Clean
or replace the PCV valve.
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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

(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.

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.