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Old 07-31-2012, 10:27 PM
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No power!

I just changed the under valve cover harness and got everything buttoned back up and drove it and I have no power. It has no punch when I put my foot on the pedal. It will get up to speed but I have no boost. Could my turbo be bad? When I mash my foot on the pedal it will down shift. But I don't have the acceleration that is normal

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Old 07-31-2012, 10:55 PM
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It reads these two codes p1248 and p1316

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Old 07-31-2012, 11:42 PM
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If the map sensor is not connected would that be the reason for loss of power or no boost

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Old 07-31-2012, 11:42 PM
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Re: No power!

Double check your map sensor line.
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Old 08-01-2012, 01:15 AM
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Is that sensor line gray in color?
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Old 08-01-2012, 01:26 AM
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This is a picture of what I am referring to

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Old 08-01-2012, 01:44 AM
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Re: No power!

yes indeed, that would be why youre not making any boost
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Old 09-20-2012, 09:55 PM
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Re: No power!

You posted this in the Superduty section. I don't recognize that line, but it's probably your problem. The MAP sensor is near the pass side wiper and has a wire connector and single boost line hooked to your intake manifold.
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