Idle Control Solenoid Valve
- Idle control solenoid valve is activated by commands from ECU. When solenoid valve opens, vacuum enters hose between air flow tube and solenoid valve. Idle speed increases for a short period after starting engine and whenever electrical loads are turned on.NOTE: Vacuum will disappear when engine RPM is raised over 1700 RPM.
- While solenoid valve is being activated, 9 volts or more should be available between Black terminal (A) and Light Green (B) of valve leads.
- On Accord SEi models, disconnect wire harness from idle control solenoid valve. Disconnect vacuum hose No. 26 from air flow tube. Apply vacuum to hose. It should hold vacuum.
- Connect the positive battery terminal to the Black/Yellow terminal of control box and negative battery terminal to Green/Black terminal. Disconnect vacuum hose No. 28 from intake manifold. Apply vacuum to vacuum hose No. 26. It SHOULD NOT hold vacuum.
- Connect vacuum gauge to hose and apply vacuum. It should hold vacuum.
- Connect battery positive terminal to control box connector Black terminal and negative terminal to Light Green terminal. Apply vacuum to hose. It SHOULD NOT hold vacuum.