EMISSION CONTROL (AUX. EMISSION CONTROL DEVICES)(H4DO) > Purge Control Solenoid Valve
REMOVAL
1. Disconnect the ground cable from battery.

2. Remove the bolt which holds the purge control solenoid valve onto intake manifold.
NOTE:
Hold the purge control solenoid valve unit by hand to prevent it from rotating together.

3. Disconnect the vacuum hose from the intake manifold and intake manifold clip (A).

4. Disconnect the vacuum hose (A) and connector (B) from the purge control solenoid valve, and remove the purge control solenoid valve.

5. Remove the vacuum hose from the purge control solenoid valve.

Inspection
InstallationInspection
FUEL INJECTION (FUEL SYSTEMS)(H4DO) > Main RelayINSPECTION1. Check that the main relay has no deformation, cracks or other damages.2. Measure the resistance between main relay terminals.Terminal No.Standard1 and 21 M? or more3 and 4130.4 — 230.8 ? (when 20°C (68°F))3. Conn ...
Spark plugs
It may be difficult to replace the spark
plugs. It is recommended that you have
the spark plugs replaced by your
SUBARU dealer.
The spark plugs should be replaced
according to the maintenance schedule
in the "Warranty and Maintenance Booklet".
CAUTION
Make sure the cables are replaced in
...
System operation
Operating conditions
The BSD/RCTA system in the Subaru Ascent functions only when specific operating
requirements are satisfied. These conditions ensure accurate detection and reliable
system performance.
The ignition switch of the Subaru Ascent is in the "ON" position.
The BSD/ ...