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2003 Audi A4 Quattro won't accelerate fast-takes a long time to get up to speed

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Old 11-28-2014, 01:04 PM
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Default 2003 Audi A4 Quattro won't accelerate fast-takes a long time to get up to speed

This started about 5 days ago and I am wondering what your thoughts on what the problem might be are. Went to peep boys to get the codes:

P4204 cat system efficiency below threshold bank 1

P0171 bank 1 system too lean

P0507 idle air control system revolution perminate higher than expected

P0299 turbocharged supercharger underfoot condition
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