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Old 07-27-2014, 07:23 PM
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Low-power need help

2003 f350 6.0L
New turbo
new fuel pump
Bluespring update
New fuel filters

Have no power in stock mode. Have to turn the tuner up to extreme to have Stock power. Other than that everything is running perfect. Think engine may be running a lean due to the fact that I get no smoke out of the tailpipe at all And just want my stock power back!!!!!
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Old 07-27-2014, 09:01 PM
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Do you have any way to read fuel pressure?
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Old 07-28-2014, 05:57 AM
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Check for air flow leaks to the turbo and exhaust leaks. Misaligned flanges,clamps splits in pipeing bellows of the y-pipe etc.

Since you changed filters are the caps on correctly, no damage to 0-ring or cracked cap itself? Possible improper install of blue spring kit?

The list goes on.
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Old 07-28-2014, 08:40 AM
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I have no way to check fuel pressure. And I have no exhaust leaks or air leaks anywhere on the truck
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