1990 MITSUBISHI SPYDER Service Repair Manual

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Page 497 of 2103

MITSUBISHI SPYDER 1990 Service Repair Manual ACTUATOR TEST REFERENCE TABLE
Drive contentsInspection contents
l
Ground the spar
l Ignition switch: Connect new sparplugs to the
Spark plugs
ignite
Ignition switch: ONOperating sou

Page 498 of 2103

MITSUBISHI SPYDER 1990 Service Repair Manual ENGINE
NOTE
If an injector operates properly, it releases fuel when activated by the PCM.Prolonged injector actuation; particularly
on vehicles equipped with multi-port systems

Page 499 of 2103

MITSUBISHI SPYDER 1990 Service Repair Manual ENGINE (NON-TURBO)>
ON-VEHICLE SERVICE
THROTTLE BODY MINIMUM AIR FLOW
CHECK
1.Start the engine and warm it up until the engine co olant
is heated to
or higher and then stop the
engine.

ENGINE (NON-TURBO)>
ON-VEHICLE SERVICE
THROTTLE BODY MINIMUM AIR FLOW
CHECK
1.Start the engine and warm it up until the engine co olant
is heated to
or higher and then stop the
engine.
PCV valve hose2.Disconnect the PCV valve hose from the intake manif old
n i p p l e .
3. Attach Air Metering Fitting
(0.125 in. orifice)
to the intake manifold nipple.
4.Disconnect the inch idle purge line from the throttle
body nipple. Cap the inch nipple.
5. Connect the scan tool to the data link connector .
6.Restart the engine. Allow engine to idle for at least one
minute. All accessories should be off.
7. Using the scan tool, access the ACTUATOR TEST “Minimum Airflow Idle Speed” screen.
8. The following will then occur:
lIdle air control motor will fully close.
lIdle spark advance will become fixed.
l Scan tool displays engine speed.
9. If idle speed is within the range shown in the
Specification chart, throttle body minimum airflow is set
correctly.
Standard value:
(Less than 1,000 miles)
(More than 1,000 miles)
If idle speed is not within the standard value, use the
scan tool to access the special function “Reset AC” screen
and reset the Then carry out step 7 again.
10. If idle speed is above specifications, use the scan tool
to check idle air control motor operation. If idle air control
motor is OK, replace the throttle body.
NOTE
If the throttle body is replaced, reset the IAC.
idle speed is below specifications, shut off the e ngine
and clean the throttle body as follows: (a) Remove the throttle body from engine.
WARNING:
CLEAN THROTTLE BODY IN A WELL-VENTILATED
AREA. WEAR RUBBER OF BUTYL GLOVES, DO
NOT LET CLEANER COME IN CONTACT WITH
EYES OR SKIN. AVOID INGESTING THE
CLEANER. WASH THOROUGHLY AFTER USING
CLEANER.
(b) While holding the throttle open, spray the entir e throttle
body bore and the manifold side of the throttle plate
with cleaner.
TSB RevisionI

Page 500 of 2103

MITSUBISHI SPYDER 1990 Service Repair Manual ( N O N - T U R B O ) > . .
(c) Using a soft scuff pad, clean the top and bottom
of throttle body bore and the edges and manifold
side of, ‘the throttle blade. The edges of th

Page 501 of 2103

MITSUBISHI SPYDER 1990 Service Repair Manual E N G I N E ,
FUEL PRESSURE TEST
FUEL SYSTEM PRESSURE MUST BE RELEASED BEFORE
A F U E L S Y S T E M H O S E O R C O M P O N E N T ’ “ I S
DISCONNECTED.
The specifications l

Page 502 of 2103

MITSUBISHI SPYDER 1990 Service Repair Manual ENGINE
6. If is not correct, troubleshoot and repair
to the table
SymptomP r o b a b l e c a u s eRemedy
l Fuel pressure too lowClogged fuel filter Replace fuel filterl No fu

Page 503 of 2103

MITSUBISHI SPYDER 1990 Service Repair Manual ENGINE (NON-TURBO)> On-vehicle
FUEL PUMP
(HOW TO REDUCE FUEL LINE PRESSURE)
When removing the fuel pipe, hose., etc., since fuel
in the fuel pipe line is high, do the followi

Page 504 of 2103

MITSUBISHI SPYDER 1990 Service Repair Manual ENGINE (NON-TURBO)> .
13100210139
COMPONENT LOCATION
Evaporative emission purge solenoid
Evaporative emission ventilation solenoid
Fuel pump relay
Heated oxygen sensor (Front)
Heated

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