Hi everyone , having a major power loss in my partners 2006 Bf xr6 . It starts and runs perfectly with no problem, when I put my foot fown to try get going quick , it doesnt want to at all , it drags along , and when putting foot flat ...it feels like something is pulling it back and it revs BUT dies down quickly. An auto laser would eat this xr6 for dinner its that bad. Ive replaced and done the following with no luck
Serviced engine and trans
New spark plugs
New coils
New TPS
New MAP sensor
New inlet manifold gasket
Please help other wise we are literally rolling it down the boat ramp