GDI <4G6> -
Troubleshooting
13A-94
Wave Pattern Observation Points
Point:
Condition of wave pattern build-up section and maximum voltage (Refer to abnormal wave
pattern examples 1 and 2.)
Condition of wave pattern build-up section and maximum voltage Probable cause
Rises from approx. 2V to approx. 4.5V at the top-right
Normal
2V rectangular wave
Open-circuit in ignition primary circuit
Rectangular wave at power voltage
Power transistor malfunction
Examples of Abnormal Wave Patterns
D
Example 1
Wave pattern during engine cranking
Cause of problem
Open-circuit in ignition primary circuit
Wave pattern characteristics
Top-right part of the build-up section cannot be seen,
and voltage value is approximately 2V too low.
D
Example 2
Wave pattern during engine cranking
Cause of problem
Malfunction in power transistor
Wave pattern characteristics
Power voltage results when the power transistor is ON.
--- Normal wave pattern
2V
V
B
--- Normal wave pattern
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 567: ...REAR AXLE 2WD 27A REAR AXLE 4WD 27B 27A 1 REAR AXLE CONTENTS 27109000246...
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