Mustang GT 4.6 s197 bad term fuel

[charzun]

Hello.
Will someone help me diagnose? The engine is running poorly.
I have bad fuel adjustments
There are no fault codes
The engine has been working well for several months and now suddenly there is no power
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[decipha]

first you need to clear the kams you have bad kams

[charzun]

How can I do this? I do not know what you mean

[f.creek-ranch]

kam reset is to clear all fuel trims.
yours are complete off.
check vacuum, fuel pressure, injectors.

[charzun]

OK thanks.
I deleted the settings with the forscan, but they immediately go to a big minus.
I also have LPG installations and the corrections for LPG are also negative, so I can rule out fuel.
Fuel pressure is approx.
After pressing the gas pedal to the maximum, the car goes very well, so the injectors are also ok.

The engine works poorly at medium power.

I checked the vacuum hoses, they are ok.

Could the intake manifold be a problem? You can hear the air a little with the flaps marked in the picture
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[B E N]

Vacuum leak will do exactly what you are describing. Everything between the cylinder head and the MAF needs to be leak free.

[charzun]

Is there any way to seal these places? For me, in Poland, shipments from the USA are waiting a long time

[B E N]

Yes, you need to find the vacuum leak and address it, search for vacuum leak on youtube it is basic engine diagnostics stuff.

[charzun]

I have a leak in the place as above in the photo