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Illustration Catalog 31A July 1987 |
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GM3 65 T 1981 ELECTRONIC ENGINE EMISSION CONTROLS TYPICAL 8 CYL SHOWN 1 VALVE A I R Injection Control 3 670 VALVE Electronic Air Control Switching 3 670 VALVE A R A Switching Electric 3 670 2 l SENSOR Coolant Temperature 3 670 SENSOR Manifold Air Temperature 3 682 3 SOLENOID Mixture Control 3 440 4 SENSOR Throttle Position 3 764 5 CONTROLLER ECM Electronic Control Module 3 670 CONTROL Electronic Spark 2 383 MODULE Modulated Displacement Selector Drive 2 410 6 CALIBRATOR PROM Programmable Read Only Memory 3 670 7 HARNESS Inst Panel 2 480 8 MODULE Cold Start Program Modifier E Cell 3 670 MODULE Electronic Vacuum Sensor 2 480 9 HARNESS Electronic Control Module Wiring 3 675 10 SENSOR Manifold Absolute Pressure 3 682 11 SENSOR Baromatric Pressure 3 682 A 12 SENSOR Exhaust Oxygen 3 682 13 CONTROL KIT Idle Speed 3 766 14 VALVE EFE EGR Canister Solenoid 3 670 VALVE EFE EGR Solenoid 3 670 SOLENOID EGR Control Valve Relay 3 670 15 SENSOR Manifold Differential Pressure 3 682 16 MODULE RPM Signal Conditioner 3 670 RELAY Air Control Valve 3 670 RELAY EGR Control Valve 3 670 RELAY EFE 3 670 17 RELAY Air Control Valve 3 670 RELAY EGR Control Valve 3 670 RELAY EFE 3 670 The parts illustrated here are a schematic layout guide of those items directly related to the computer controlled emission system It is typical for all engine displacements and part content will differ dependant upon restrictions of vehicle weight cubic inch liter options etc g There may be several listings at a single callout identification number due to different functions performed by similar parts and would vary in relation to specific engine requirements Until such time as we are able to publish individual and specific engine emission illustrations refer to this illustration for nomenclature and grouping V See also the emission reference chart immediately following this illustration f j t 1987 GENERAL MOTORS SERVICE PARTS OPERATIONS OLDSMOBILE 31A T 7 87 3 181 3 000 GROUP