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.
1988 Eagle Premier ESFACTORY OEM SERVICE PROCEDURE
Throttle Position Sensor (TPS)
- The use of Diagnostic Tester (M.S. 1700) is preferred when adjusting the throttle position sensor. Turn ignition on, engine off. DO NOT unplug the Throttle Position Sensor (TPS) wire harness connector. Insert voltmeter leads through the back of the wire harness connector.
- TPS connector is marked "A", "B" and "C". Insert negative lead of voltmeter in terminal "B" and positive lead to terminal "C". Reading should be 5 volts. Insert voltmeter positive lead to terminal "A". Reading should be .4 volt. To adjust, loosen TPS retaining screws and pivot sensor to obtain correct reading/ratio.
Factory Service Tools
Use the Manual With the Right Hardware
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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.
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