Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSEAGLE1989SUMMIT LX, 1.6 Y, STANDARDREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCETHEORY AND OPERATIONTHEORY/OPERATIONCOMPUTERIZED ENGINE CONTROLSOUTPUT SIGNALS
1989 Eagle Summit LX, 1.6 Y, Standard
Output Signals
1989 Eagle Summit LX, 1.6 Y, StandardSECTION Output Signals
The ECU processes information from the input sensors and sends appropriate voltage control signals to the following engine controls:
- Air Conditioner Power Relay (Idle Speed)
- Boost Pressure Meter (Meter Display)
- Check Engine Light (Emission)
- Detonation Control Signal (Ignition)
- EGR Control Solenoid Valve (Emission)
- Fuel Injectors (Fuel Control)
- Fuel Pump Control (Fuel Delivery)
- Idle Speed Control Servo (Idle Speed)
- Ignitor (Ignition)
- Power Transistor (Ignition)
- Purge Control Solenoid Valve (Emission)
- Secondary Air Induction Control Valve (Emission)
- Self-Diagnostics (Self-Diagnostics)
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.