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Home >> Toyota >> 1983 >> Tercel/Cor. Tercel L4-1452cc 1AC,3A,3AC >> Repair and Diagnosis >> Powertrain Management >> Fuel Delivery and Air Induction >> Carburetor >> Testing and Inspection >> System Testing
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System Testing


1. Ensure coolant temperature is below specified temperature.
2. Disconnect vacuum hose from vacuum switch ``B.''
3. Start engine and ensure no vacuum is felt in disconnected vacuum hose.
4. Connect vacuum hose.
5. Run engine until it reaches operating temperature.
6. Disconnect electrical connector of electric air bleed control valve.
7. Maintain engine speed at 2500 RPM.
8. Connect connector and ensure engine speed momentarily drops approximately 300 RPM.
9. With engine at idle, disconnect electrical connector of electric air bleed control valve.
10. Connect connector and ensure engine RPM does not change.
11. Disconnect vacuum hose from vacuum switch ``B.''
12. Disconnect electrical connector of electric air bleed control valve.
13. Maintain engine speed at 2500 RPM.
14. Connect connector and ensure engine RPM does not change.
15. If test results are unsatisfactory, test individual components.



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