GDI <4G6> -
Troubleshooting
13A-90
Examples of Abnormal Wave Patterns
D
Example 1
Cause of problem
Sensor interface malfunction
Wave pattern characteristics
Rectangular wave pattern is output even when the engine
is not started.
D
Example 2
Cause of problem
Damaged rectifier or vortex generation column
Wave pattern characteristics
Unstable wave pattern with non-uniform frequency.
However, when an ignition leak occurs during acceleration,
the wave pattern will be distorted temporarily, even if
the air flow sensor is normal.
CAMSHAFT POSITION SENSOR AND CRANK ANGLE
SENSOR
Measurement Method
1. Disconnect the camshaft position sensor connector and
connect the special tool (test harness: MB991709) in
between. (All terminals should be connected.)
2. Connect the analyzer special patterns pickup to camshaft
position sensor terminal 2.
3. Disconnect the crank angle sensor connector and connect
the special tool (test harness: MD998478) in between.
4. Connect the analyzer special patterns pickup to crank
angle sensor terminal 2.
Alternate Method (Test harness not available)
1. Connect the analyzer special patterns pickup to
engine-ECU terminal 88. (When checking the camshaft
position sensor signal wave pattern.)
2. Connect the analyzer special patterns pickup to
engine-ECU terminal 89. (When checking the crank angle
sensor signal wave pattern.)
Standard Wave Pattern
Observation conditions
Function
Special patterns
Pattern height
Low
Pattern selector
Display
Engine r/min
Idle speed
Crank angle
sensor connector
Camshaft position sensor
connector
Analyzer
Special patterns
pick-up
Содержание Space Runner 1998
Страница 35: ...ENGINE 4G6 11A ENGINE 4G9 11B 11A 1 ENGINE CONTENTS 11109000276...
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Страница 119: ...13A 1 FUEL CONTENTS GASOLINE DIRECT INJECTION GDI 4G6 13A GASOLINE DIRECT INJECTION GDI 4G9 13B FUEL SUPPLY 13C...
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Страница 355: ...13C 1 FUEL SUPPLY CONTENTS 13509000197 GENERAL INFORMATION 2 FUEL TANK 3...
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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...
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Страница 567: ...REAR AXLE 2WD 27A REAR AXLE 4WD 27B 27A 1 REAR AXLE CONTENTS 27109000246...
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Страница 913: ...INTERIOR 52A SUPPLEMENTAL RESTRAINT SYSTEM SRS 52B 52A 1 INTERIOR AND SUPPLEMENTAL RESTRAINT SYSTEM SRS CONTENTS...
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