MPI <6A1> -
Troubleshooting
13A-145
INSPECTION CHART FOR TROUBLE SYMPTOMS
Trouble symptom Inspection
procedure
No.
Reference page
Communication Communication with all systems is not possible. 1 13A-146
with MUT-
II
is
impossible.
Communication with engine-ECU only is not possible. 2 13A-146
Engine warning
lamp and
The engine warning lamp does not illuminate right after the
ignition switch is turned to the ON position.
3 13A-147
related parts
The engine warning lamp remains illuminating and never goes
out.
4 13A-147
Starting No initial combustion (starting impossible) 5 13A-148
Initial combustion but no complete combustion
(starting impossible)
6 13A-149
Long time to start (improper starting) 7 13A-150
Idling stability Unstable idling (Rough idling, hunting) 8 13A-151
(Improper idling)
Idling speed is high. (Improper idling speed) 9 13A-153
Idling speed is low. (Improper idling speed) 10 13A-154
Idling stability When the engine is cold, it stalls at idling. (Die out) 11 13A-155
(Engine stalls)
When the engine becomes hot, it stalls at idling. (Die out) 12 13A-156
The engine stalls when starting the car. (Pass out) 13 13A-158
The engine stalls when decelerating. 14 13A-158
Driving Hesitation, sag or stumble 15 13A-159
The feeling of impact or vibration when accelerating 16 13A-161
The feeling of impact or vibration when decelerating 17 13A-161
Poor acceleration 18 13A-162
Surge 19 13A-164
Knocking 20 13A-166
Dieseling 21 13A-166
Too high CO and HC concentration when idling 22 13A-166
Low alternator output voltage (approx. 12.3 V) 23 13A-168
Idling speed is improper when A/C is operating 24 13A-168
Fans (radiator fan, A/C condenser fan) are inoperative 25 13A-169
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