Fuel Injected Engine

Models Equipped W/Automatic Transmission, Exc. 1987-88 Accord & Prelude
9 volts or more should be present between the black/yellow (+) terminal and green ( - ) terminal of No. 1 control box harness while valve is energized.
1. Disconnect rectangular 6 terminal electrical connector from control box.
2. Disconnect vacuum hose No. 23 from vacuum manifold and apply vacuum to hose. Valve should hold vacuum.
3. Continue applying vacuum to hose and briefly energize solenoid by connecting battery as follows:
a. On 1985 Accord connect battery positive terminal to the black wire terminal on No. 1 control box and battery negative terminal to the yellow/black terminal.
b. On 1986 Accord and Prelude connect battery positive terminal to black/yellow wire terminal on control box and connect battery negative terminal to blue terminal.
4. Valve should not hold vacuum when energized.
5. If A/T idle control solenoid fails to operate as outlined, valve is defective.