Subaru Legacy BN/BS (2015-2019) Service Manual: Spark plug

Installation

Direct ignition type is adopted. Refer to “Spark Plug” for the installation procedure. Spark Plug > INSTALLATION ...

Removal

Spark plug:Refer to “SPECIFICATION” for spark plug. General Description > SPECIFICATION1. RH SIDE1. Disconnect the ground terminal from battery sensor. NOTE2. Remove the air cleaner elem ...

Other materials:

Fuel system trouble in general inspection
TroublePossible causeCorrective actionInsufficient fuel supply to fuel injectora. Fuel pump does not operate. Defective terminal contactInspect contact, especially ground, and tighten it securely. Trouble in electromagnetic or electronic circuit partsReplace the faulty parts.b. Decline of fue ...