SPECIFICATION
| Air Flow (kg/h) | Output Frequency (Hz) |
|---|---|
| 12.6 kg/h | 2,617Hz |
| 18.0 kg/h | 2,958Hz |
| 23.4 kg/h | 3,241 Hz |
| 32.4 kg/h | 3,653Hz |
| 43.2 kg/h | 4,024Hz |
| 57.6 kg/h | 4,399HZ |
| 72.0 kg/h | 4,704Hz |
| 108.0 kg/h | 5,329Hz |
| 144.0 kg/h | 5,897Hz |
| 198.0 kg/h | 6,553Hz |
| 270.0 kg/h | 7,240Hz |
| 360.0 kg/h | 7,957Hz |
| 486.0 kg/h | 8,738Hz |
| 666.0 kg/h | 9,644Hz |
| 900.0 kg/h | 10,590HZ |
MASS AIR FLOW SPECIFICATION
Scheme 9
Scheme 10
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 PCM 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 | Resistance (kohms) | |
|---|---|---|
| °C | °F | |
| 40 | 40 | 100.87kohms |
| 20 | 4 | 28.58kohms |
| 0 | 32 | 9.40kohms |
| 10 | 50 | 5.66kohms |
| 20 | 68 | 3.51kohms |
| 40 | 104 | 1.47kohms |
| 60 | 140 | 0.67kohms |
| 80 | 176 | 0.33kohms |
RESISTANCE SPECIFICATION
Scheme 11
Manifold Absolute Pressure Sensor (MAPS) is speed-density type sensor and is installed on the surge tank. This MAPS senses absolute pressure in surge tank and transfers this analog signal proportional to the pressure to the PCM. The PCM calculates the intake air quantity and engine speed based on this signal. This MAPS consists of piezo-electric element and hybrid IC that amplifies the element output signal. The element is silicon diaphragm type and adapts pressure sensitive variable resistor effect of semi-conductor. 100% vacuum and the manifold pressure applies to both sides of it respectively. That is, this sensor outputs the silicon variation proportional to pressure change by voltage.
| Pressure(kPa) | Output Voltage (V) |
|---|---|
| 20.0kPa | 0.79V |
| 46.66kPa | 1.84V |
| 101.32kPa | 4.00V |
PRESSURE (KPA) SPECIFICATION
Scheme 12
| Temperature | ResistanceKohms | |
|---|---|---|
| °C | °F | |
| 40 | 40 | 48.14Kohms |
| 20 | 4 | 14.13 ~ 16.83Kohms |
| 0 | 32 | 5.79Kohms |
| 20 | 68 | 2.31 ~ 2.59Kohms |
| 40 | 104 | 1.15Kohms |
| 60 | 140 | 0.59Kohms |
| 80 | 176 | 0.32Kohms |
RESISTANCE SPECIFICATION
Scheme 13
| A/F Ratio | Output Voltage (V) |
|---|---|
| RICH | 0.75 ~ 1.00V |
| LEAN | 0 ~ 0.12V |
VOLTAGE SPECIFICATION
| Item | Specification |
|---|---|
| Heater Resistance (ohms) | 8.1 ~ 11.1 ohms at 21 °C (69.8°F) |
RESISTANCE SPECIFICATION
Scheme 14
Scheme 15
| Item | Specification |
|---|---|
| Capacitance (pF) | 1,480 ~ 2,220pF |
CAPACITANCE SPECIFICATION
Scheme 16
| Item | Specification |
|---|---|
| Coil Resistance (ohms) | 11.4 ~ 12.6ohms at 20°C (68°F) |
COIL RESISTANCE SPECIFICATION
Scheme 17
| Item | Specification |
|---|---|
| Coil Resistance (ohms) | 6.7 ~ 7.7ohms at20°C (68°F) |
COIL RESISTANCE SPECIFICATION
Scheme 18
| Temperature | Resistance(kohms) | |
|---|---|---|
| °C | °F | |
| 20 | 4 | 16.52kohms |
| 20 | 32 | 2.45kohms |
| 80 | 176 | 0.29kohms |
RESISTANCE SPECIFICATION
Scheme 19
| Item | Specification |
|---|---|
| Coil Resistance (ohms) | 19.0 ~ 22.0ohms at 20°C (68°F) |
COIL RESISTANCE SPECIFICATION
Scheme 20
| Item | Specification |
|---|---|
| Coil Resistance (ohms) | 30.0 ~ 35.0 ohms at 22°C (71.6°F) |
COIL RESISTANCE SPECIFICATION
Scheme 21
Scheme 22
Accelerator Position Sensor (APS) is installed on the accelerator pedal module and detects the rotation angle of the accelerator pedal. The APS is one of the most important sensors in engine control system, so it consists of the two sensors which adapt individual sensor power and ground line. The second sensor monitors the first sensor and its output voltage is half of the first one. If the ratio of the sensor 1 and 2 is out of the range (approximately 1/2), the diagnostic system judges that a malfunction has occurred.
| Pedal Position | Output Voltage (V) [Vref = 5.0V] | |
|---|---|---|
| APS1 | APS2 | |
| C.T | 0.7 ~ 0.8V | 0.29 ~ 0.46V |
| W.O.T | 3.85 ~ 4.35V | 1.93 ~ 2.18V |
VOLTAGE SPECIFICATION
| Item | Sensor Resistance |
|---|---|
| APS1 | 0.7 ~ 1.3kohms at 20°C (68°F) |
| APS2 | 1.4 ~ 2.6kohms at 20°C (68°F) |
SENSOR RESISTANCE SPECIFICATION
Scheme 23
Scheme 24
The evaporative emission control system prevents hydrocarbon vapors from escaping from the fuel tank into the atmosphere where they could form photochemical smog. Gasoline vapors are collected in the charcoal canister. The Fuel Tank Pressure Sensor (FTPS) is installed on fuel pump assembly and is an integral part of the evaporative monitoring system. The PCM monitors the FTPS signal to detect vacuum decay and excess vacuum. The FTPS measures the difference between the air pressure inside the fuel tank and outside air pressure to check the purge control solenoid valve operation and for leak detection in the evaporative emission control system by monitoring pressure and vacuum levels in the fuel tank during the purge control solenoid valve operating cycles.
| Pressure (kPa) | Output Voltage (V) |
|---|---|
| 6.67 kPa | 0.5 V |
| 0 kPa | 2.5 V |
| 6.67 kPa | 4.5 V |
VOLTAGE SPECIFICATION
Scheme 25
| Item | Specification |
|---|---|
| Coil Resistance (ohms) | 19.8 ~ 21.8ohms at 20°C (68°F) |
COIL RESISTANCE SPECIFICATION
