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 MANUALSPLYMOUTH1993LASER FWD L4-1753CC 1.8L SOHCREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSTHROTTLE POSITION SENSORDESCRIPTION AND OPERATION
1993 Plymouth Laser FWD L4-1753cc 1.8L SOHC
Throttle Position Sensor: Description and Operation
1993 Plymouth Laser FWD L4-1753cc 1.8L SOHCSECTION Description and Operation
TPS Circuit:
Purpose
The Throttle Position Sensor (TPS) is a rotating type variable resistor. It senses the throttle valve angle.
Location
The TPS is located on the throttle chamber at the throttle shaft.
Operation
As the throttle shaft rotates, the output voltage of the TPS changes. The ECU determines the throttle valve opening based on the output voltage. The ECU computes throttle valve opening change (output voltage change) and judges the engine acceleration state and accordingly corrects fuel injection amount during acceleration.
RENDER: 1.0x
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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.