Accord L4-1955cc 2.0L SOHC FI (1987)
1. Check the vacuum line for proper connection, cracks, blockage or disconnected hoses.
2. Warm up the engine to normal operating temerature (the cooling fan comes only.
NOTE: Apply parking brake securely.
3. Disconnect the # 18 vacuum hose from the air flow tube and connect a vacuum gauge to the hose.
There should be no vacuum.
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If there is vacuum, go to solenoid valve test II.
4. Shift transmission into "D3" or "D4".
There should be vacuum.
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If there is no vacuum, go to solenoid valve test I.
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If there is vacuum, the test is complete.
Solenoid Valve Test I:
NOTE: Apply parking brake securely.
1. Start the engine and allow to idle.
2. Disconnect # 23 vacuum hose from the intake manifold and check for vacuum.
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If there is no vacuum, check the vacuum port.
3. Disconnect the 6P connector.