Throttle Opener Operating Speed

Turn lights and accessories off. Place transmission in Neutral. Run engine until it reaches normal operating temperature. If equipped, electric fan should be off. Be sure curb idle is within specifications.
On 1.5L engines, remove vacuum hose from throttle opener. System is working properly if there is no vacuum. On all engines, use test light and check solenoid valve wire connections for current. There should be no current. If current is indicated, inspect electric load, power steering and/or air conditioning switches. If continuity is indicated when switches are in "OFF" position, switches must be replaced.
On 1.5L engines, use vacuum pump and apply vacuum to throttle opener. If it can not hold vacuum, throttle opener must be replaced. Push electric load (tail light, defogger and blower) or A/C switch. System is functioning properly if there is vacuum at throttle opener vacuum hose. If no vacuum is indicated, remove manifold vacuum hose from solenoid valve and check for vacuum. If there is no vacuum, clean intake manifold vacuum connection and repeat step.
On all engines, if necessary to reset idle speed to specifications, switch A/C or other suitable switches to "ON" position. Adjust engine to specified speed with throttle opener screw. Turn A/C or other switch on and off several times to check for throttle lever operation.

THROTTLE OPENER SPECIFICATIONS