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**tlynn** · 04-16-2012, 12:31 PM

Advice would be good - it's too late to hear what I should not have done. So back to square one. We can rule out bad gas. The cats you referred to, I thought that would downgrade the performance. If not, how is it checked?
How are knocks diagnosed?

04-16-2012, 12:31 PM	#7
tlynn Name: tlynn Title: United Newb Status: Offline Join Date: Feb 2009 Location: Menlo Park, CA User not setup in Rate My Car. Click here to set it up. Your Ride: 95 530	Advice would be good - it's too late to hear what I should not have done. So back to square one. We can rule out bad gas. The cats you referred to, I thought that would downgrade the performance. If not, how is it checked? How are knocks diagnosed?