Mitsubishi Evolution X. Manual - part 306
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI)
13A-201
DTC SET CONDITIONS
Logic Flow Chart
.
Check Conditions
• Engine coolant temperature is between −10° C
(14
° F) and 60° C (140° F) when the engine is
started.
• Intake air temperature is −10° C (14° F) or higher
when the engine is started.
• The intake air temperature when the engine is
started
− intake air temperature is 5° C (9° F) or
less.
• The total time of the mass airflow sensor output
whose state is below 14 g/sec within 550 sec-
onds.
Judgement Criteria
• The time for the engine coolant temperature to
rise to 77
° C (171° F) takes longer than approxi-
mately 9.5 to 43.5 minutes.
.
FAIL-SAFE AND BACKUP FUNCTION
• None
.
OBD-II DRIVE CYCLE PATTERN
Refer to Diagnostic Function
− OBD-II Drive Cycle −
Pattern 9
.
.
TROUBLESHOOTING HINTS (The most
likely causes for this code to be set are:)
• The engine cooling system is faulty.
• ECM failed.
End
No
No
Malfunction
Good
Specified time has passed
after engine start?
Engine coolant temp.
>= 77˚C (171˚F)
No
AK604325
Start
Yes
Yes
Yes
Monitoring
conditions