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 SYSTEMSEGR VALVE POSITION SENSORDESCRIPTION AND OPERATION
1993 Honda Accord L4-2156cc 2.2L SOHC
EGR Valve Position Sensor: Description and Operation
1993 Honda Accord L4-2156cc 2.2L SOHCSECTION Description and Operation
Exhaust Gas Recirculation (EGR) System:
PURPOSE
Regulates vacuum to the EGR valve, controlled by the ECM.
LOCATION
EGR mounted lift sensor and a vacuum control solenoid in the vacuum box
CONSTRUCTION
The sensor uses a plunger operated potentiometer supplying a signal to the ECM.
OPERATION
The ECM contains memories for optimum EGR lift during various conditions. It reads actual EGR position from the lift sensor.
The sensor uses a plunger operated potentiometer supplying a signal to the ECM. If the EGR actual position differs from it's preferred position, the ECM cuts control solenoid power to reduce vacuum applied to the EGR valve.
NOTE: For additional information on the EGR system, refer to EMISSION CONTROL DEVICES.
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.