Location of spark torque sensor: 1 – sparking torque sensor; 2 - vacuum regulator; 3 – the case of a drive of auxiliary units of the engine
You will need:
- screwdriver
- 15 V voltmeter or 12 V test lamp
Faults spark torque sensor are manifested as follows:
- the engine cannot be started or it works intermittently - the Hall sensor is faulty;
- when starting the car, the engine runs with failures, the car accelerates slowly - the vacuum regulator is faulty;
- bad (sluggish) acceleration and jerks while the car is moving - the centrifugal regulator is faulty.
You can check the serviceability of the Hall sensor and the vacuum regulator without removing the spark moment sensor from the car. To check the centrifugal governor, contact a service station, as a special stand is required.
1. To check the operation of the vacuum regulator, start the engine and remove the vacuum hose going to the vacuum regulator from the carburetor fitting. Create a vacuum in the hose (at least by mouth). At the same time, the crankshaft speed should increase, and when the vacuum is removed, it should decrease.
2. To check the functionality of the Hall sensor, remove the sensor cover by unscrewing the two screws securing it.
3. Connect a voltmeter or test lamp according to the diagram shown. Turn on the ignition (without starting the engine) and slowly rotate the engine crankshaft using the crankshaft pulley bolt. The voltage should change sharply from 0.4 to 8 V (min). The control lamp should flash. If this does not happen, the Hall sensor is defective.