2. Before starting to check the system, you must first check whether the cold start valve is working properly.
3. Disconnect the electrical connector plug from the cold start valve and connect a test lamp to its ends.
4. Disconnect the electrical connection plug from the temporary thermal switch and connect the ground to the W connection contact using a wire of appropriate length (green-white wire). Compound g (red-black wire) must not be connected to ground.
5. Start the engine and let it idle, the test light should not be on continuously, but should come on briefly (0.4 seconds) when the throttle is opened quickly.
6. If there is any damage in the system, it is necessary to check the electrical connections, the throttle switch and the diaphragm pressure switch.
7. The diaphragm pressure switch can be tested with an ohmmeter. Disconnect the electrical wire plug at the end of the diaphragm pressure switch, then run the engine at idle speed. Use an ohmmeter to check the resistance between the contacts. The ohmmeter should show infinite resistance.
8. After this, it is necessary to slowly open the throttle to the position at which the action of the switch is heard (there should be a cracking sound). The ohmmeter should show 0 Ohms, and the gap between the throttle lever and the idle speed limiter should be 0.2-0.6 mm. Measure with a feeler gauge.
9. If necessary, adjust the switch by loosening it from the bottom of the throttle body and placing a 0.4 mm thick feeler gauge between the lever and the limiter. Move the switch toward the switch lever, then press it down to check the adjustment.
10. If the throttle switch is adjusted, lift the coupling bracket to release it.
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