LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Honda >> 1987 >> Prelude Base, Standard >> Repair and Diagnosis >> Engine Performance >> System >> EGR System >> Component Testing >> EGR Control Solenoid Valve
April 5, 2026: LEMON Manuals is launched! Read the announcement.

EGR Control Solenoid Valve

  1. Open the control box lid and disconnect the wire harness from control box. Disconnect lower vacuum hose of EGR control solenoid valve (between the EGR control solenoid valve and the air chamber), from the air chamber. Apply vacuum to the hose. If it does not hold vacuum, go to next step. If it does hold vacuum, replace the EGR control solenoid valve and re-test.
  2. Connect the positive terminal of a 12 volt battery to the Black/Yellow terminal of the control box connector and the negative terminal to the Red terminal. Apply vacuum to the hose. If it does not hold vacuum, replace the EGR control solenoid valve and re-test.
scientia non olet · About LEMON Manuals