i've been driving since 4 months with an 1.8ts engine in my 147.....its mapped by squadra tuning at beginning and has an ss manifold and front pipe.....as also an bmc cda.....
however ive had it on de the rolling road last week...and it showed only 120bhp.....it suppose to be 150bhp...(topspeed doesnt go further than 200km/h)..today i had an appointment with my mechanic....and he checked everything...like airmass meter (2 weeks ago renewed)...de lamda's sensors ....also the spark plugs....and everything showed normal...
the funny thing the engine sounds well and has a little oil consumption in 1l in 2000-2500miles
so no real indication what the problem is! wednesday my mechanic will do a compression test...to check the pressure within the cilinders....however i think this wont be faulty
Plz help me i dont know what to do after the compression test!!