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<blockquote data-quote="Black306" data-source="post: 7917016" data-attributes="member: 4780"><p>Although the fuel systems are identical, the tunes are not. '03s tend to run more rich past ~4500 than '04s. I believe that is a major part of the reason '04s had better fuel mileage and no gas guzzler tax. That said, I think the hesitation issue was more of a problem on '03s than '04s.</p></blockquote><p></p>
[QUOTE="Black306, post: 7917016, member: 4780"] Although the fuel systems are identical, the tunes are not. '03s tend to run more rich past ~4500 than '04s. I believe that is a major part of the reason '04s had better fuel mileage and no gas guzzler tax. That said, I think the hesitation issue was more of a problem on '03s than '04s. [/QUOTE]
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