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Home >> Geo >> 1989 >> Tracker Base, Standard >> Repair and Diagnosis >> Engine Performance >> Theory and Operation >> Theory/Operation >> Computerized Engine Controls >> Input Devices >> Gear Position (5th Gear Switch M/T Tracker)
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Gear Position (5th Gear Switch M/T Tracker)

ECM is signaled when switch closes as transmission is shifted into 5th gear. Switch is open in all other gear positions. This on/off signal is used by ECM with others inputs to control EGR solenoid operation.