2. Disconnect the throttle position sensor connector.
3. With wire connector "crocodile" connect an ohmmeter to the output "2" ("weight") and conclusion "3" (signal) throttle position sensor.
4. Insert a 0.65 mm feeler gauge between the factory idle speed screw (SAS) and throttle lever.
5. Loosen the screws securing the throttle position sensor and turn the sensor housing counterclockwise until it stops.
6. Under these conditions, check that the circuit is closed between the terminals "2" And "3" sensor.
7. Slowly turning the sensor body clockwise, find the position where the circuit between the indicated terminals opens. Then securely tighten the sensor fixing screws in this position.
8. Connect the throttle position sensor connector.
9. Connect a tester to a diagnostic socket.
10. If not a tester is used for testing, then connect a digital voltmeter between the terminals "1" ("weight") And "3" (signal) sensor connector through the test harness.
11. Turn the ignition key to position "ON" (ON), do not start the engine. Verify that the throttle position sensor signal voltage is within the rated range. If the test is performed using a tester, then read the voltage of the sensor signal (select item #14 of the Hi-Scan tester).
- Rated value: 250-800mV
12. If the measured voltage does not match the nominal value, then check that the resistance between "weight" and the output of the sensor signal corresponds to the nominal value.
- Rated value: 1.6-2.4 kΩ
13. If the measured resistance does not correspond to the nominal value, then replace the throttle position sensor.
14. Remove the dipstick.
15. Turn the ignition key to position "OFF" (OFF).
16. Disconnect the tester or digital voltmeter.
Checking the canister purge vacuum hose fitting
Attention: only check if the coolant temperature is 80-95°C.
1. Disconnect the vacuum hose from the fitting of the canister purge channel (on throttle body) and connect the hand vacuum pump.
Engine 2.7 l. | Engines 2.0 l / 2.4 l. |
2. Start the engine and check that as the engine speed increases, the vacuum remains almost constant.
Note: if vacuum is not created, then there are probably deposits in the channel of the vacuum hose fitting (in throttle body), and needs to be cleaned.