Used seafoam, car runs great but doesn't hit 15psi..

[my95tsi]

Ok i just sucked up an entire can of seafoam and did the whole process. I have yet to change my oil but i don't think it will harm the oil anyway. I did notice a small leak in my exhaust manifold gasket. After i ran the seafoam and cleared all the smoke I noticed a big difference in the smoothness of my idle, but my car won't hit 15psi right away anymore. If i pull hard it hits 12psi and sticks there, then when i keep on the throttle till about 6k it slowly creeps to 14-15psi. My car is set at 15-16 psi and before i ran the seafoam it hie 15psi no problem. What could ahve caused this??

 

[liquordrunk]

Ok i just sucked up an entire can of seafoam and did the whole process. I have yet to change my oil but i don't think it will harm the oil anyway. I did notice a small leak in my exhaust manifold gasket. After i ran the seafoam and cleared all the smoke I noticed a big difference in the smoothness of my idle, but my car won't hit 15psi right away anymore. If i pull hard it hits 12psi and sticks there, then when i keep on the throttle till about 6k it slowly creeps to 14-15psi. My car is set at 15-16 psi and before i ran the seafoam it hie 15psi no problem. What could ahve caused this??

maybe you knocked the hose off of you wg. or do you have a MBC or a EBC..

 

[Spoolin4Ever]

Did you clean the plugs after the SeaFoam?

You just burnt a bunch of carbon, cat hair and coffer grinds off of your pistons, burning in all of that in the combustion chamber.

Clean or replace the spark plugs, and report back, let us and everyone else in your shoes know what the outcome was.

Oh by the way, your oil would probably also get dirty after running the SeaFoam, as some crap may get past the rings in the crankcase. So change your oil soon.

 

[2gForMe]

Like he said above.
Change your plugs NOW.

Change your oil NOW.

Seafoam doesnt have any of the properties oil does and will not lubricate your engine.
So change our oil. NOW.