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Why would your MPG be lower after a full tune up?

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βˆ™ 2005-09-15 19:19:21

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Could be the mechanic set the throttle control too high, so your car idles at a higher RPM than it used to. Timing was set wrong. your car should be better after a tune, perhaps the tuner made a mistake or did not do the tune correctly

2005-09-15 19:19:21
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