I have a few quick questions about my vehicle. I have a 2000 si recently rebuilt engine. The mechanic im using doesnt know the deal. Right when i start my vehicle i have puff of white smoke and then oil or something is spraying out the muffler. this doesnt last forever but until the vehicle is warmed up. additionally my back bumper is black from running rich?? my mechanic suggested i swap the iacv and that didnt work. additionally the car stalls at stops lights when its been running for five minutes. seems like it stalls if im slightly at an uphill angle of like 5 degrees. additionally i smell gas.. car seems to run fine but i cant hear vtec. i do have a vafc that is currently not programmed but it is showing vtec engaging.. anyone have any ideas on what the problem could be?

 

additionally the smoke is white and goes away. also i have a cel that goes on and off

 

relocated map sensor seems to be a little better. problem possibly cause by blox intake manifold... Does anyone know if replacing the map sensor could fix the problem entirely?