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 MANUALSMERCURY1992TOPAZ LS, 3.0 U, AUTOMATIC, FLCREPAIR AND DIAGNOSISENGINE PERFORMANCESPECIFICATIONSENGINE CONTROLS - SPECIFICATIONS - 4-CYLFUEL SYSTEMTHROTTLE POSITION SENSOR/SWITCH
1992 Mercury Topaz LS, 3.0 U, Automatic, FLC
Throttle Position Sensor/Switch
1992 Mercury Topaz LS, 3.0 U, Automatic, FLCSECTION Throttle Position Sensor/Switch
NOTE:
For 1.8L M/T throttle position switch procedures and specifications, see CIRCUIT TEST STG in TESTS W/CODES
article in the ENGINE PERFORMANCE Section.
TPS VOLTAGE SPECIFICATIONS
| Throttle Position | (1) Volts | ||
|---|---|---|---|
| 1/8 Open | .998 | ||
| 1/4 Open | 1.60 | ||
| 3/8 Open | 2.37 | ||
| 1/2 Open | 2.74 | ||
| 5/8 Open | 3.15 | ||
| 3/4 Open | 3.43 | ||
| 7/8 Open | 3.60 | ||
| Full Open | 4.02 | ||
|
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TPS VOLTAGE SPECIFICATIONS
| Throttle Angle | (1) Volts | ||
|---|---|---|---|
| 0° | .50 | ||
| 10° | .97 | ||
| 20° | 1.44 | ||
| 30° | 1.90 | ||
| 40° | 2.37 | ||
| 50° | 2.84 | ||
| 60° | 3.31 | ||
| 70° | 3.78 | ||
| 80° | 4.24 | ||
|
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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.