Use to control high and low idle speed settings and controlling RPM during any diagnostic procedure...charging air conditioning systems, cylinder balance tests, etc.On carbureted Ford vehicles you can test either the idle speed control (ISC) motor or idle tracking switch (ITS). On fuel injected Ford systems you can test the bypass air solenoid.Tester will diagnose defective control motors or solenoids.Wt., 9 oz.
OTC 7951 Idle Speed Control Tester
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