Integra & Vigor

Operate engine until cooling fan comes on. Turn engine off. Connect tachometer. Disconnect 2-wire connector from Idle Air Control Valve (IACV). See Fig 1 .
Restart engine and hold at 1000 RPM momentarily. Let engine return to idle. Check base idle speed with M/T in Neutral (A/T in "N" or "P") and all accessories, including cooling fan, off. Base idle speed should be 550-650 RPM for Integra and 500-600 RPM for Vigor. If necessary, turn screw to adjust base idle speed. See Fig 2 .

Turn ignition off. Reconnect 2-wire IACV connector. Remove BACK-UP fuse (7.5-amp on Integra; 10-amp on Vigor) in main underhood fuse box for 10 seconds to reset ECU. Start engine and allow to idle for one minute. Check idle speed. Idle speed should be as specified. See IDLE SPEED SPECIFICATIONS table.

Fig 1: Disconnecting IACV (Integra Shown; Vigor Is Similar)

Courtesy of AMERICAN HONDA CO., INC.

Fig 2: Adjusting Idle Speed Screw (Integra Shown; Vigor Is Similar)

Courtesy of AMERICAN HONDA MOTOR CO., INC.

IDLE SPEED SPECIFICATIONS

Application

RPM

Integra

1.7L

⁽¹⁾ 750-850

1.8L

⁽¹⁾ 700-800

Legend

Coupe

A/T

⁽¹⁾ 580-680

M/T

630-730

Sedan

A/T

⁽¹⁾ 550-650

M/T

600-700

Vigor

⁽¹⁾ 650-750

⁽¹⁾	Automatic transmission in Neutral or Park.