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Old 25 Jun 2008, 10:22 pm
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Default 2000 Civic EX high rpm whiffing sound???

My 2000 Civic EX with 128,000 miles has started to have some problems. At first, when I was going up hills, it would feel like it would suddenly lose any power - like how it feels when you are running out of gas - and then the power would come back a second or two later. About a week later, it would lose any power to gain momentum going up hill. Now, about two weeks later, it is making a whiffing sound when I would be pressing on the gas at 4000-4500 rpm. It doesn't make that sound at high rpms when I am not pressing on the gas which leads me to believe it is not the engine or the transmission, but something with the fuel system.

FYI, I have had a check engine light that has been on for a couple months. It has a diagnostic code of 420 which I think means that there is something wrong with my catalytic converter. I don't know if the two problems are related or not, but who knows if this information is useful.

Any ideas?? Thank you all so much in advance for viewing this post andfor any insight you might have.
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