hi there ive just recently changed the cam follower in my R as it shattered and then did a full engine flush and oil change,changed 5W40nt+ millers
to 5w30 castol c3, but then soon as i did that ive noticed my car kicking out black smoke like its a pd130 and it stinks and i dont know what it is, ive got my options on o2 sesnor or leaky injector, but i dont have any misfires at all, so please can anyone help me ASAP
And Does anyone know the actual running OHMZ for the bank 1 sensor when running stage 2+ 370bhp