Pic. 7.4. Location of the pressure sensor in the intake manifold
2. Measure the resistance between pins 1 and 3 of the sensor connector (see fig. 7.4).
Resistance, kOhm:
- at a temperature of 20°C: 2.3-3.0
- at a temperature of 80°C: 0.30-0.42
3. Remove the intake manifold pressure sensor.
4. By heating the sensor with a jet of hot air from a hair dryer, check the change in the resistance of the temperature sensor of the air entering the engine, which should decrease with increasing temperature (pic. 7.5).
Pic. 7.5. Using a hair dryer to heat the engine air temperature sensor
5. If the resistance does not decrease when the sensor is heated, replace the sensor.
6. Establish the gauge of pressure in an inlet collector and fix bolts, having extended them the demanded moment.
Tightening torque: 13-15 Nm