Discussion and technical advice the SW20 MR2. 3S-GTE, 3S-GE, 3S-FE etc
Anything and everything to do with maintenance, modifications and electrical is in here for the Mk2.
I know that mine makes a 'hissing' sound for a second or so when I shut the engine off. I'm pretty sure it's air coming back out of my induction kit - that wasn't ingested into the engine ?