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#7: 12-10-2012, 09:46 PM
Title: Junior Member
Car: 02 legacy L 5spd
Posts: 31
iTrader: (0)
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ive heard the spark knock only twice. Only a po420. Nothing for knock sensor codes. It really seems to drop rpm fast when I let off the throttle. Im thinking the cats may be clogged. If they insist I pay out the wazoo ill just do what I did with my civic and have high flow cats from vibrant. I had a good experience and they are only like $100 each. Plus maybe $100 for a shop to weld a bung for o2 in them. The amount of cats on this car sucks lol

Ive replaced the tensioner pulley and the belt that goes with it. Ive adjusted both fairly tight. Still have the screaching. Its only from like 3500RPMs on up. Thinking maybe the alternator. It sounds rough when turned with the belt off. May be ceasing under load. Just a guess. Idk