View Single Post
#2: 11-14-2012, 12:00 PM
Title: Member
Car: 2005 LGT Ltd Wagon & 2001 Forester
Posts: 128
iTrader: (0)
Send a private message to mungewell Find all posts by mungewell Reply With Quote
It might be the ECU cycling the revs to confirm that the Cat is functioning, which might be a problem with the Cat itself or the rear O2 sensor dying.

You could just shut the engine off when parked