PO341, PO 420

2002 Subaru Legacy

Engine Performance problem
2002 Subaru Legacy 4 cyl All Wheel Drive Automatic 118000 miles

My car really vibrates going up hill and has a whine when I accelerate. My dealer says I need a cm/crank sensor kit and new catalytic converter-$240 kit, $1400 converters. Does this sound right. Can he do the kit first and if that doesn't help do the Cat Converter. Could I do the Kit, I'm not real skilled (plugs, wires filters etc.
June 9, 2008.

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