Subaru Legacy BN/BS (2015-2019) Service Manual: Knock sensor

Disassembly

1. Remove the throttle body. Throttle Body > REMOVAL2. Remove the EGR pipe. EGR Pipe > REMOVAL3. Remove the EGR control valve. EGR Control Valve > REMOVAL4. Remove the purge control solenoid valve. ...

Removal

1. Disconnect the ground terminal from battery sensor. NOTE2. Remove the bolt securing the connector to the A/C compressor.3. Disconnect the connector (A) from the knock sensor, and remove the knock ...

Other materials:

Inspection
• Inspect the drive plate facing for wear and damage.• Check the driven plate for discoloration (burnt color).• Check for worn snap ring, fatigue or damaged return spring or deformed spring retainer.• Make sure the clearance between retaining plate and snap ring of reverse br ...