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Old 08-09-2012, 03:37 PM   #1
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I suspected that, but 1st and 2nd are fine so that might not be it. Would low fuel pressure store a code? I got nothing with durametric.
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Old 08-09-2012, 03:52 PM   #2
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A failing MAF can cause hesitation in the 4-5K range. Unplug the MAF and see if it improves. If it does, clean/replace your MAF.
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Old 08-09-2012, 04:20 PM   #3
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Idle is perfect, as well as 4-5k range in all gears except 3rd. The strange thing is this happens only when I upshift from 2nd at high rpm. I will d/c the MAF anyway to see if the problem goes away.
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