Adjust idle speed and mixture composition.
1. Start the engine and set the mixture quality screw to maximum idle speed.
2. Use the mixture quantity screw to set the idle speed:
For engines:
- with manual transmission - 750 rpm
- with automatic transmission - 850 rpm
(Publication Reprinted from a web portal www.toyotaman.ru)
3. Repeat these adjustments until the maximum idle speed increases at any position of the quality screw.
4. Set the minimum idle speed by turning the quality screw.
5. (If there is a feedback system)
Connect the vacuum hose to the vacuum tester (VTV).
6. (If there is an air bypass system in the exhaust pipe (AS-systems))
Connect the vacuum hose to the AS system vibration valve.
7. (If the idle speed screw is sealed)
Install a new plug (seal).
8. After completing the adjustment, perform a road test to ensure that engine performance has not changed.
Troubleshooting
