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Engine Control System: Specifications Hyundai Elantra III facelift

Testing & Diagnostics 15 illustrations ~154 words

Specification

Air Flow (kg/h)Output Voltage (V)
4.90.70
7.30.90
12.21.18
20.81.51
28.31.73
38.91.97
64.72.40
113.32.90
185.33.35
256.03.64
404.64.07
476.74.25
603.254.6

VOLTAGE SPECIFICATION

Scheme 40

Scheme 40: Circuit Diagram
Scheme 40: Circuit Diagram

Scheme 41

Scheme 41: Function And Operation Principle
Scheme 41: Function And Operation Principle

Intake Air Temperature Sensor (IATS) is installed inside the Mass Air Flow Sensor (MAFS) and detects the intake air temperature. To calculate precise air quantity, correction of the air temperature is needed because air density varies according to the temperature. So the ECM uses not only MAFS signal but also IATS signal. This sensor has a Negative Temperature Coefficient (NTC) and its resistance is in inverse proportion to the temperature.

Temperature [°C (°F)]Resistance (kohms)
4041.26 ~ 47.49
3023.94 ~ 27.21
2014.26 ~ 16.02
108.72 ~ 9.69
05.50 ~ 6.05
103.55 ~ 3.88
202.35 ~ 2.54
251.94 ~ 2.09
301.61 ~ 1.73
401.11 ~ 1.19
600.57 ~ 0.60
800.31 ~ 0.32

RESISTANCE TEMPERATURE SPECIFICATION

Scheme 42

Scheme 42: Circuit Diagram
Scheme 42: Circuit Diagram
Temperature [°C (°F)]Resistance (kohms)
40(-40)48.14
20(-4)14.13 ~ 16.83
0 (32)5.79
20 (68)2.31 ~ 2.59
40 (104)1.15
60 (140)0.59
80 (176)0.32

RESISTANCE TEMPERATURE SPECIFICATION

Scheme 43

Scheme 43: Circuit Diagram
Scheme 43: Circuit Diagram
Throttle AngleOutput Voltage (V)
C.T0.25 ~ 0.9
W.O.TMin. 4.0V

VOLTAGE SPECIFICATION

ItemsSpecification
Sensor Resistance (kohms)1.6 ~ 2.4kohms at 20°C (68°F)

RESISTANCE SPECIFICATION

Scheme 44

Scheme 44: Circuit Diagram
Scheme 44: Circuit Diagram

HO2S [Bank 1/Sensor 1]

ItemSpecification
Heater Resistance (ohms)2.4 ~ 2.9ohms at 20°C (68°F)

RESISTANCE SPECIFICATION

HO2S [Bank 1/Sensor 2]

A/F RatioOutput Voltage (V)
RICH0.6 ~ 1.0
LEAN0.1 ~ 0.4

VOLTAGE SPECIFICATION

ItemSpecification
Heater Resistance (ohms)Approx. 9.0ohms at 20°C (68°F)

RESISTANCE SPECIFICATION

Scheme 45

Scheme 45: Circuit Diagram
Scheme 45: Circuit Diagram
ItemSpecification
Capacitance (pF)950 ~ 1,350
Resistance (Mohms)4.87

RESISTANCE SPECIFICATION

Scheme 46

Scheme 46: Waveform
Scheme 46: Waveform

Scheme 47

Scheme 47: Circuit Diagram
Scheme 47: Circuit Diagram
ItemSpecification
Coil Resistance (ohms)13.8 ~ 15.2ohms at 20°C (68°F)

RESISTANCE SPECIFICATION

Scheme 48

Scheme 48: Circuit Diagram
Scheme 48: Circuit Diagram
ItemsSpecification
Closing Coil Resistance (ohms)14.6 ~ 16.2 at 20°C (68°F)
Opening Coil Resistance (ohms)11.1 ~ 12.7 at 20°C (68°F)

RESISTANCE SPECIFICATION

Duty (%)Air Flow Rate (m 3 /h)
151.0 ~ 2.3
357.5 ~ 12.7
7043.0 ~ 55.0
9663.0 ~ 71.0

AIR FLOW RATE AND DUTY SPECIFICATION

Scheme 49

Scheme 49: Circuit Diagram
Scheme 49: Circuit Diagram
ItemSpecification
Coil Resistance (ohms)6.9 ~ 7.9ohms at 20°C (68°F)

RESISTANCE SPECIFICATION

Scheme 50

Scheme 50: Circuit Diagram
Scheme 50: Circuit Diagram
ItemSpecification
Coil Resistance (ohms)16.0ohms at 20°C (68°F)

RESISTANCE SPECIFICATION

Scheme 51

Scheme 51: Circuit Diagram
Scheme 51: Circuit Diagram
Temperature [°C (°F)]Resistance (kohms)
40(-40)52.15
20(-4)16.52
0 (32)6.0
20 (68)2.45
40 (104)1.11
60 (140)0.54
80 (176)0.29

RESISTANCE TEMPERATURE SPECIFICATION

Scheme 52

Scheme 52: Circuit Diagram
Scheme 52: Circuit Diagram
Pressure (kPa)Output Voltage (V)
6.670.5
02.5
+6.674.5

VOLTAGE SPECIFICATION

Scheme 53

Scheme 53: Schematic Diagram
Scheme 53: Schematic Diagram
ItemSpecification
Coil Resistance (ohms)15.5 ~ 18.5ohms at 20°C (68°F)

RESISTANCE SPECIFICATION

Scheme 54

Scheme 54: Schematic Diagram
Scheme 54: Schematic Diagram

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