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 MANUALSHONDA1993ACCORD L4-2156CC 2.2L SOHCREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSTHROTTLE POSITION SENSORDESCRIPTION AND OPERATION
1993 Honda Accord L4-2156cc 2.2L SOHC
Throttle Position Sensor: Description and Operation
1993 Honda Accord L4-2156cc 2.2L SOHCSECTION Description and Operation
Throttle Position Sensor:
PURPOSE
The sensor is a variable resistor (potentiometer) that is used by the ECM to detect throttle movement and position.
LOCATION
The throttle angle sensor is mounted on and driven by the throttle body unit.
CONSTRUCTION
The sensor is a variable resistor (potentiometer) that is used by the ECM to detect throttle movement and position.
OPERATION
A 5 volt reference signal is applied from the ECM and a ground signal. When the throttle is opened the sensor resistance changes which is read as a varying voltage signal. At idle position the sensor voltage is approx. 0.5V and approx. 4.5 V at full throttle.
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.