Mitsubishi Eclipse / Eclipse Spyder (2000-2002). Service and repair manual - part 371
ENGINE CONTROL
TSB Revision
ENGINE AND EMISSION CONTROL
17-3
.
EN G IN E C O N TR O L
GENERAL DESCRIPTION
M1171000100084
A cable-type accelerator mechanical suspended-
type pedal has been adopted.
ENGINE CONTROL SYSTEM DIAGNOSIS
INTRODUCTION TO ENGINE CONTROL SYSTEM DIAGNOSIS
M1171002000083
If there is a malfunction in the engine control system,
the accelerator cable, accelerator pedal or throttle
lever may be faulty.
ENGINE CONTROL SYSTEM DIAGNOSTIC TROUBLESHOOTING STRATEGY
M1171002100109
Use these steps to plan your diagnostic strategy.
If you follow them carefully, you will be sure that you
have exhausted most of the possible ways to find an
engine control system fault.
1. Gather information from the customer.
2. Verify that the condition described by the
customer exists.
3. Find the malfunction by following the Symptom
Chart.
4. Verify that the malfunction is eliminated.
SYMPTOM CHART
M1171002200106
SYMPTOM PROCEDURES
INSPECTION PROCEDURE 1: Throttle Valve will not Fully Open or Close
DIAGNOSIS
STEP 1. Check the accelerator cable adjustment.
Q: Is the accelerator cable properly adjusted?
YES :
Go to Step 2.
NO :
Adjust the accelerator cable by referring to
STEP 2. Check the return spring.
Q: Is the return spring damaged or deformed?
YES :
Go to Step 3.
NO :
Replace, then go to Step 4.
STEP 3. Check the throttle lever.
Q: Is the throttle lever damaged or deformed?
YES :
Replace, then go to Step 4.
NO :
There is no action to be taken.
STEP 4. Check symptom.
Q: Does the throttle valve fully open and close?
YES :
This diagnosis is complete.
NO :
Return to Step 1.
SYMPTOMS
INSPECTION PROCEDURE
REFERENCE PAGE
Throttle valve will not fully open or close
1
Accelerator pedal operation not smooth (over
acceleration)
2