Mitsubishi Lancer Evolution VI - Inspection Chart for Trouble Symptoms

MPI – Troubleshooting
13-18
INSPECTION CHART FOR TROUBLE SYMPTOMS
Trouble symptom Inspection
procedure
No.
Reference page
Communication
with MUT
-
II is
Communication with all systems is impossible. 1 13-20
with
MUT
-
II
is
impossible.
Communication with engine-ECU only is impossible. 2 13-20
Engine warning
lamp and
related parts
The engine warning lamp does not illuminate right after the
ignition switch is turned to the ON position.
3 13-21
re
l
a
t
e
d
par
t
s
The engine warning lamp remains illuminating and never goes
out.
4 13-21
Starting No initial combustion (starting impossible) 5 13-22
Initial combustion but no complete combustion
(starting impossible)
6 13-23
Long time to start (improper starting) 7 13-24
Idling stability
(Improper idling)
Unstable idling (Rough idling, hunting) 8 13-25
(I
mproper
idli
ng
)
Idling speed is high. (Improper idling speed) 9 13-26
Idling speed is low. (Improper idling speed) 10 13-27
Idling stability
(Engine stalls)
When the engine is cold, it stalls at idling. (Die out) 11 13-28
(E
ng
i
ne s
t
a
ll
s
)
When the engine is hot, it stalls at idling. (Die out) 12 13-29
The engine stalls when starting the car. (Pass out) 13 13-30
The engine stalls when decelerating. 14 13-30
Driving Hesitation, sag or stumble 15 13-31
The feeling of impact or vibration when accelerating 16 13-31
The feeling of impact or vibration when decelerating 17 13-32
Poor acceleration 18 13-32
Surge 19 13-33
Knocking 20 13-33
Dieseling 21 13-33
Too high CO and HC concentration when idling 22 13-34
Low alternator output voltage (approx. 12.3 V) 23 13-35