Mitsubishi Lancer Evolution IX. Manual - part 385
TROUBLESHOOTING
MULTIPORT FUEL INJECTION (MPI)
13A-15
Procedure 3
READINESS TEST STATUS
The engine-ECU monitors the following main diagno-
sis items, judges if these items are in good condition
or not, and the stores its history. This history can be
read out by using M.U.T.-II/III. (If the ECU has judged
a item before, the M.U.T.-II/III displays "Complete").
In addition, if diagnosis codes are erased or the bat-
tery cable is disconnected, this history will also be
erased (the memory will be reset).
• Catalyst: P0421
• Oxygen sensor: P0130
• Oxygen sensor heater: P0135, P0141
Other monitor
Diagnosis
code No.
P0136, P0201, P0202, P0203, P0204, P0300, P0301, P0302, P0303, P0304, P0325,
P0500, P0551
Drive cycle
pattern
One trip monitor [from start to ignition switch to "LOCK" (OFF) position] will be completed
while traveling with the following drive cycle pattern. It will take 21 minutes or more.
Inspection
conditions
• Engine coolant temperature: After engine warm up
• Atmospheric temperature: −10°C or more
Test
procedure
1. Engine: start
2. Accelerate until the vehicle speed is 55 km/h.
3. While keeping the accelerator pedal opening degree constant, keep the vehicle speed at
55 km/h and travel for 16 minutes or more.
4. Return the vehicle to the shop.
5. After stopping the vehicle, continue idling for 5 minutes, and then turn the ignition switch
to "LOCK" (OFF) position.
AK301817
16 minutes or more
Ignition switch :
"LOCK" (OFF)
position
Engine Start
Vehicle
speed
55 km/h or more
(1)
(4)
(3)
(2)
(5)
Time
AB
5 minutes or more
Engine: Idling
Transmission: Neutral