Mitsubishi Electric Lancer Evolution-VII Workshop Manual page 1205

13A-68
Inspection Procedure 11
Pulsation (Hesitation, sag), poor acceleration, stumbling,
surging
Causes shown on right are suspected.
MUT-II Self-Diag code
D Is a diagnosis code output?
Check the ignition timing.
(Refer to GROUP 11 - Engine Adjustment.)
Check the injector operation sound. (Use sound scope.)
MUT-II Data list
D No. 13: Intake air temperature sensor
D No. 14: Throttle position sensor
D No. 21: Engine coolant temperature sensor
D No. 25: Barometric pressure sensor
(Refer to P.13A-102.)
<Reference>
Proceed to OK if all service data values are correct.
Proceed to NG if there is even one abnormal service data value.
Check the purge control solenoid valve.
(Refer to GROUP 17 - Exhaust Gas Purifier Check.)
Check the EGR control solenoid valve.
(Refer to GROUP 17 - Exhaust Gas Purifier Check.)
Check the EGR valve for sticking.
(Refer to GROUP 17 - Exhaust Gas Purifier Check.)
MUT-II Data list
D No. 11: Oxygen sensor (front) (Refer to P.13A-102.)
MUT-II Data list
D No. 59: Oxygen sensor (rear) (Refer to P.13A-105.)
<Europe and General Export-spec. models>
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MPI -
Troubleshooting
NO
OK
OK
OK
OK
OK
OK
OK
OK
Probable cause
D Air/fuel ratio control system malfunction
D Ignition system malfunction
D Fuel system malfunction
D Intake and exhaust system malfunction
D Exhaust gas purifier system malfunction
D Improper compression pressure
D Turbocharger system malfunction
YES
INSPECTION CHART FOR DIAGNOSIS CODE
(Refer to P.13A-12.)
NG
Check mounting state of crank angle sensor and timing belt cover.
NG
Check the Code No. P0201 - 204: Injector system for faulty
cylinder.
NG
Refer to inspections for diagnosis code of sensor showing
abnormal service data. (Refer to P.13A-12.)
NG
Replace the purge control solenoid valve.
NG
Replace the EGR control solenoid valve.
NG
Replace the EGR valve.
NG
Check the Code No. P0130: Oxygen sensor (front) system.
(Refer to P.13A-24.)
NG
Check the Code No. P0136: Oxygen sensor (rear) system.
(Refer to P.13A-27.)