Mass Air Flow Sensor | Terminal | Inspection Condition | Measured Value | Remarks | |
Pin No. | 1 | MAFS Signal |
•
Ignition switch "ON" & Engine "OFF"Voltage is measured on wiring side(Disconnected)
•
Voltage is measured on wiring side(Disconnected) | Approx. 4.8V | - |
2 | Reference Frequency | Approx. 4.8V | - | ||
3 | Intake Air Temperature Sensor #1 Signal | Approx. 5.0V | - | ||
4 | MAFS Ground | 0V | - | ||
5 | MAFS Power | B+ | - | ||
Mass Air Flow Sensor | Terminal | Inspection Condition | Measured Value | Remarks | |
Pin No. | 1 | MAFS Signal |
•
Ignition switch "ON" & Engine "OFF"
•
Voltage is measured on wiring side(Connected) | Approx. 2.5V | Signal Waveform(Fig. 2) |
2 | Reference Frequency | Approx. 3.5V | Signal Waveform(Fig. 1 | ||
3 | Intake Air Temperature Sensor #1 Signal | Approx. 2.35V | Approx. 28℃(82.4℉) | ||
4 | MAFS Ground | 0V | - | ||
5 | MAFS Power | B+ | - | ||
Air Flow (kg/h) | Frequency (kHz) |
8 | 1.96 - 1.97 |
10 | 2.01 - 2.02 |
40 | 2.50 - 2.52 |
105 | 3.18 - 3.23 |
220 | 4.26 - 4.35 |
480 | 7.59 - 7.94 |
560 | 9.08 - 9.89 |
Air Flow (kg/h) | Frequency (kHz) |
10 | 2.00 - 2.01 |
40 | 2.49 - 2.53 |
105 | 3.16 - 3.25 |
480 | 7.42 - 8.12 |
Temperature (℃/℉) | Resistance (kΩ) |
-40 / -40 | 35.14 - 43.76 |
-20 / -4 | 12.66 - 15.12 |
0 / 32 | 5.12 - 5.89 |
20 / 68 | 2.29 - 2.55 |
40 / 104 | 1.10 - 1.24 |
60 / 140 | 0.57 - 0.65 |
80 / 176 | 0.31 - 0.37 |
