H3LZSN1P3R
You're doing it wrong
Its not needed even unhooking the def pump is not needed, mine was plugged in for 2 years not even drained then I reinstalled the system and it worked perfectly fine even with the old DEF then after 3 tanks of DEF and 2 months I removed it again.Ya the video showed just def unplugged and zip ties. But the EGR part. Disconnected and removed everything and put plates etc etc. Looks rough as heck on that part