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GDI <4G9> -
Troubleshooting
13B-85
Wave Pattern Observation Points
Check that the standard wave pattern appears when the EGR valve is operating.
Point A: Presence or absence of induced electromotive force from the motor turning. (Refer to the abnormal
wave pattern.)
Contrast with standard wave pattern
Probable cause
Induced electromotive force does not appear or is extremely small.
Motor is malfunctioning
Point B: Height of coil reverse electromotive force
Contrast with standard wave pattern
Probable cause
Coil reverse electromotive force does not appear or is extremely small. Short in the coil
Examples of Abnormal Wave Pattern
D
Example 1
Cause of problem
Motor is malfunctioning. (Motor is not operating.)
Wave pattern characteristics
Induced electromotive force from the motor turning does
not appear.
D
Example 2
Cause of problem
Open circuit in the line between the EGR valve and the
engine-ECU
Wave pattern characteristics
Current is not supplied to the motor coil on the open
circuit side. (Voltage does not drop to 0 V.)
Furthermore, the induced electromotive force waveform
at the normal side is slightly different from the normal
waveform.
Open
circuit
side
Normal
side
Содержание Space Runner 1998
Страница 35: ...ENGINE 4G6 11A ENGINE 4G9 11B 11A 1 ENGINE CONTENTS 11109000276...
Страница 74: ...NOTES...
Страница 119: ...13A 1 FUEL CONTENTS GASOLINE DIRECT INJECTION GDI 4G6 13A GASOLINE DIRECT INJECTION GDI 4G9 13B FUEL SUPPLY 13C...
Страница 354: ...NOTES...
Страница 355: ...13C 1 FUEL SUPPLY CONTENTS 13509000197 GENERAL INFORMATION 2 FUEL TANK 3...
Страница 418: ...NOTES...
Страница 436: ...NOTES...
Страница 460: ...NOTES...
Страница 519: ...AUTOMATIC TRANSMISSION On vehicle Service 23 59 OIL SEAL LAYOUTsub 04 O A H B C D E F G I J K L M N...
Страница 532: ...NOTES...
Страница 567: ...REAR AXLE 2WD 27A REAR AXLE 4WD 27B 27A 1 REAR AXLE CONTENTS 27109000246...
Страница 660: ...NOTES...
Страница 714: ...NOTES...
Страница 722: ...NOTES...
Страница 732: ...NOTES...
Страница 772: ...NOTES...
Страница 912: ...NOTES...
Страница 913: ...INTERIOR 52A SUPPLEMENTAL RESTRAINT SYSTEM SRS 52B 52A 1 INTERIOR AND SUPPLEMENTAL RESTRAINT SYSTEM SRS CONTENTS...
Страница 954: ...NOTES...