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Home >> Acura >> 1995 >> Integra GS-R, 4D Sedan >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System/Component Tests >> Emission Systems & Sub-Systems >> Fuel Evaporation >> Purge Control Solenoid Valve
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Purge Control Solenoid Valve

  1. Purge control solenoid valve is located on left side of firewall. Ensure coolant temperature is less than 165°F (74°C). Remove vacuum hose No. 7 from purge control diaphragm valve, located on top of canister. Attach vacuum gauge to hose. Start and idle engine. If vacuum dose not exist, go to step 3). If vacuum exists, go to next step.
  2. Unplug connector from purge control solenoid valve. Measure voltage between harness terminals of Yellow/Black wire (positive) and Red wire (negative). If battery voltage exists, check vacuum hose for leaks or obstruction. If hose is okay, replace purge control solenoid valve. If battery voltage does not exist, check Yellow/Black wire between connector and main relay, and Red wire between ECM terminal A20 and connector. If wires are okay, substitute a known-good ECM and retest.
  3. Warm engine until cooling fan comes on. Check for vacuum. If vacuum exists, go to step 5). If vacuum dose not exist, unplug connector from purge control solenoid valve. If vacuum is now present, go to next step. If vacuum dose not exist, check vacuum hose. If hose is okay, replace purge control solenoid valve.
  4. Check Black/Yellow wire between connector and main relay, and Red wire between ECM terminal A20 and connector. If wires are okay, substitute a known-good ECM and retest.
  5. Reconnect hose. Remove fuel filler cap. Connect vacuum gauge to canister purge line. Start and operate engine at 3500 RPM. If vacuum does not appear within one minute, replace canister. If vacuum appears within one minute, purge control solenoid valve is okay. Go to 2-WAY VALVE  procedure.
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