Hyundai: Engine D4FA. Manual — part 83
DIESEL CONTROL SYSTEM
FLA -203
5)
Are the problems relevant to RPS found?
YES
▶ Replace RPS if necessary and go to "Verification of Vehicle Repair".
NO
▶ Go to "RPS waveform Inspection".
2.
RPS Waveform Inspection
1)
IG KEY "OFF", ENGINE "OFF".
2)
Connect RPS connector.
3)
Connect an Oscilloscope to RPS connector terminal 2.
4)
After turning engine "ON", Check waveform at idle and during acceleration.
Specification : Refer to "Signal Waveform & Data" of "General Information".
5)
Does RPS waveform look similar to standard "Signal Waveform & Data"?
YES
▶ Go to "Verification of Vehicle Repair".
NO
▶ Replace RPS and go to "Verification of Vehicle Repair".
VERIFICATION OF VEHICLE REPAIR
EB9C8E01
Refer to DTC P0192.
FLA -204
FUEL SYSTEM
DTC P0201 CYLINDER 1-INJECTOR CIRCUIT/OPEN
DTC P0202 CYLINDER 2-INJECTOR CIRCUIT/OPEN
DTC P0203 CYLINDER 3-INJECTOR CIRCUIT/OPEN
DTC P0204 CYLINDER 4-INJECTOR CIRCUIT/OPEN
COMPONENT LOCATION
E8EF3F9E
EGNG008C
GENERAL DESCRIPTION
EE11035A
Injectors spray fuel in the highly compressed combustion chamber, and power generates through combustion process.Fuel
pressure is raised to 1600bar in common rail diesel engine for the purpose of making fuel into minute particles. And fuel
devided into minute particles leads smoke reduction, high power generation, and improved fuel efficiency. To control
pressure of 1600bar with solenoid, oil pressure surbo is applied. And injector solenoids is actuated by solenoid oper-
ating voltage raised to 80V with the method of current control. Niddle valve inside of injector is located between A and
B chamber. If applied pressure to B chamber is relived by injector solenoid, niddle valve is raised by the pressure of A
chamber then, fuel is injected. If same pressure is applied to A and B chamber, niddle valve closes by the elasticity then,
fuel injection stops.As electronically controlled injector is applied instead of mechanical injector, pilot and post injection,
injeciton duration and quantity control are achieved. And engine performance is improved by these control.
ChamberB
ChamberA
niddle
spring
solenoid
B chamber press.
Released
(injection performed)
B chamber press.
loaded
(injection disabled)
returning fuel
EGNG008D
DIESEL CONTROL SYSTEM
FLA -205
DTC DESCRIPTION
EF12DD9C
P0201 is set when no current is detected in injector power and control circuit at injector #1 operating condition. This code
is due to open in injector circuit or open in injector component coil.
DTC DETECTING CONDITION
E6B8289E
Item
Detecting Condition
Possible Cause
DTC Strategy
• Current monitoring
Enable Conditions
• IG KEY "ON"
ThresholdValue
• Open in injector circuit
DiagnosticTime
• Immediately
Fuel Cut
NO
EGR Off
NO
Fuel Limit
YES
Fail Safe
MIL
YES
• Open in injector circuit
• Injector component
SPECIFICATION
ED33C1AC
Injector Component
Resistance
Injector Operating Voltage
Injector Operating
Current
Injector Control Type
0.255Ω ±0.04 (20℃).
80V
Peak current : 18±1A
Hold in current : 12±1A
Recharging current : 7A
Current control
FLA -206
FUEL SYSTEM
SCHEMATIC DIAGRAM
EB6BF894
1
1
1
1
1
2
2
2
2
2
C101-1 terminal 16
Injector #1 Low side
Injector #1 High side
C101-1 terminal 47
16. Injector #1 Low side
33. Injector #4 High side
47. Injector #1 High side
31. Injector #2 High side
46. Injector #3 High side
17. Injector #4 Low side
1. Injector #3 Low side
2. Injector #2 Low side
C101-1 ECM
C113-4 Injector #4
[C113-1 Injector #1]
1
2
C101-1 terminal 2
Injector #2 Low side
Injector #2 High side
C101-1 terminal 31
[C113-2 Injector #2]
1
2
C101-1 terminal 1
Injector #3 Low side
Injector #3 High side
C101-1 terminal 46
[C113-3 Injector #3]
1
2
C101-1 terminal 17
Injector #4 Low side
Injector #4 High side
C101-1 terminal 33
[C113-4 Injector #4]
C113-3 Injector #3
C113-2 njector #2
C113-1 Injector #1
1
2
C113-1
Injector
#1
1
2
C113-2
Injector
#2
1
2
C113-3
Injector
#3
1
2
C113-4
Injector
#4
C101-2 ECM
C101-1 ECM
1
30 29
31
32
38
39
36
37
35
33
34
40
42 41
46 45 44 43
48 47
50 49
2
3
4
6
5
8
7
12 11 10 9
13
14
15
18 17
19
16
22
25
27 26
23
20
21
24
28
51
75 74
53 52
73
79 78 77 76
80
81
83 82
84
86 85
87
89 88
90
92 91
93
94
57
69 68
70
71
64
54
55
56
61
58
59
60
63 62
65
66
67
72
[CIRCUIT DIAGRAM]
[HARNESS CONNECTOR]
[CONNECTOR INFORMATION]
Terminal
Terminal
Connected to
Connected to
Function
Terminal
Terminal
Connected to
Connected to
Function
Terminal
Terminal
Connected to
Connected to
Function
Terminal
Terminal
Connected to
Connected to
Function
1
2
4
3
6
5
8 7
12
13
16
17
18
23 22
20
21
19
27 26 25 24
28
29
30
14
9
10
11
15
33 32 31
34
37
41
42
40 39 38
35
36
43
44
47 46
49 48
50
53
56
58 57
54
51
52
55
59
60
45
EGNG008E
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