1989 Ford Tempo BaseFACTORY OEM SERVICE PROCEDURE

EGR Valve Position Sensor (EVP)

The EVP is attached to the top of the EGR valve. It measures the amount the EGR valve opens and sends a corresponding signal to the ECA. The ECA uses this signal to adjust EGR opening signal. The EVP sensor is removable from the EGR valve and is serviced separately.

Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.