GDI <4G6> -
Troubleshooting
13A-89
INSPECTION PROCEDURE USING AN ANALYZER
AIR FLOW SENSOR (AFS)
Measurement Method
1. Disconnect the air flow 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 air flow
sensor connector terminal 3.
Alternate Method (Test harness not available)
1. Connect the analyzer special patterns pickup to
engine-ECU terminal 90.
Standard Wave Pattern
Observation conditions
Function
Special patterns
Pattern height
Low
Pattern selector
Display
Engine r/min
Idle speed
Standard wave pattern
(V)
10
0
The time (cycle time) T is reduced when
the amount of intake air increases.
Times T1 and T2 are equal.
Time
T
T1
T2
Observation conditions
(from conditions above engine speed is increased by racing.)
Time
(V)
10
0
T
Wave Pattern Observation Points
Check that cycle time T becomes shorter and the frequency increases when the engine speed is increased.
Analyzer
Special
patterns
pickup
Содержание Space Runner 1998
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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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Страница 913: ...INTERIOR 52A SUPPLEMENTAL RESTRAINT SYSTEM SRS 52B 52A 1 INTERIOR AND SUPPLEMENTAL RESTRAINT SYSTEM SRS CONTENTS...
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