Mitsubishi Eclipse 1990 Service Manual page 428

Scan tool 46
Code General scan tool
No.
32
[Comment]
Background
Once per vehicle trip the PCM monitors the EGR system fiow rate.
If the flow rate is above or below the acceptable limits, the PCM stores a' diagnostic
trouble code.
Range of Check
Engine temperature is greater than
More than three minutes have passed since start-up.
Engine is between 1952 and 2400.
MAP voltage is between
TPS voltage is between 0.6 and
Vehicle speed exceeds 3 mph.
Short term fuel compensation value is exhibiting less than
During air/fuel ratio closed loop control
Condition
The measured change in the short-term fuel compensation value shift during the test is
less than 7.4% or greater than 20.5%.
Check the idle running.
Idle running after warming up
Remove the vacuum hose from the EGR valve nipple and plug
it.
Connect a hand vacuum pump to the EGR valve nipple, and
apply a 12 (3.5 of vacuum.
OK: Idle speed becomes unstable or the engine stalls.
Check the EGR solenoid circuit. (Refer to
PROCEDURE FOR DIAGNOSTIC TROUBLE CODES
Scan tool 46
Code General scan tool PCM Failure
No.
62
[Comment]
Unsuccessful attempt to update service reminder indicator (SRI or
control module EEPROM.
Replace the PCM.
ENGINE
EGR System Failure
and 2.70.
OK
OK
INSPECTION
SRI Mile Not Stored
I
Revision
.
Vacuum hoses' failed
NG
. Check the EGR valve and
Check the EGR tube for
Repair
Probable cause
mileage in the
cause
EGR valve
t u b e
harness and
replace if
and clean or
. .
it