Accelerator position sensor (379)
| Sensor resistance | Kohm | P1: 1.2 ± 0.4 P2: 1.7 ± 0.8 |
|---|---|---|
| Power supply (P1 pin 2, P2 pin 1) | V | 5,0 |
| Signal voltage | V | P1: 0-5.0 |
| (P1 pin 3, P2 pin 6) | P2: 0-2.5 | |
| Ground (P1 pin 4, P2 pin 5) |
ACCELERATOR POSITION SENSOR SPECIFICATIONS
Scheme 475
| Power supply, pin 1 | V | 5 |
|---|---|---|
| Ground, pin 2 | ||
| Voltage at | Pin 3 | |
| 25 kPa (-0.75 bar) | V | Approx. 0.5 |
| 50 kPa (-0.50 bar) | V | Approx. 1.0 |
| 75 kPa (-0.25 bar) | V | Approx. 1.5 |
| 100 kPa (± 0 bar) | V | Approx. 2.0 |
| 125 kPa (0.25 bar) | V | Approx. 2.5 |
| 150 kPa (0.50 bar) | V | Approx. 3.0 |
| 175 kPa (0.75 bar) | V | Approx. 3.5 |
| 200 kPa (1.00 bar) | V | Approx. 4.0 |
POWER SUPPLY REFERENCE
Measurement range: 15-235 kPa
The pressure given in kPa denotes the absolute pressure, i.e. 100kPa is equivalent to atmospheric pressure at sea level.
When checking the pressure sensor with a pressure/vacuum pump a lower voltage reading may be obtained at high altitude.
Scheme 476
| Power supply | V | 5 |
|---|---|---|
| Differential pressure | ||
| 3.7 kPa (-0.37 bar) | V | Approx. 0.5 |
| 0 kPa (0 bar) | V | Approx. 2.5 |
| 1.2 kPa (0.012 bar) | V | Approx. 4.5 |
DIFFERENTIAL PRESSURE SPECIFICATIONS
The pressure sensor determines the difference in pressure between the tank and the atmosphere, and supplies the control module with a proportional voltage.
| Type | Pierburg | |
|---|---|---|
| Characteristics | Zero current open | |
| Resistance at 20°C (68°F) | Ohm | 24,5 ± 1,5 |
| Power supply | 12 V |
CHARACTERISTICS REFERENCE
Scheme 477
| Type | Bosch LSF 4.7 With electrical preheating | |
|---|---|---|
| Power, preheating | W | Approx. 7 |
| Control range | V | 0-1 |
| Resistance at 20°C (68°F) pins 1 - 2 | Ohm | Ca 9 (PTC) |
HEATED OXYGEN SENSOR REFERENCE
Pins 3 and 4 are gold plated.
Note. The connector must not be treated with any sort of contact cleaner.