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 MANUALSFORD1999ESCORT ZX2 L4-2.0L DOHC VIN 3REPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSTHROTTLE POSITION SENSORDESCRIPTION AND OPERATION
1999 Ford Escort ZX2 L4-2.0L DOHC VIN 3
Throttle Position Sensor: Description and Operation
1999 Ford Escort ZX2 L4-2.0L DOHC VIN 3SECTION Description and Operation
The Throttle Position (TP) sensor is a rotary potentiometer in which the powertrain control module determines four operating modes from the TP signal.
These are:
^ closed throttle (idle or deceleration).
^ part throttle (Cruise, Moderate Acceleration).
^ Wide Open Throttle (WOT) (maximum acceleration, de-choke on crank and A/C cutout).
^ throttle angle rate.
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.