2003 330ci Convertible Sport package
Hi! Here is the situation. ONLY on first start after sitting for at least overnight. Starts perfect, idles perfect. Pull out and first bit of acceleration there is a bucking like a a miss, or maybe fuel pressure? I just replaced coils, plugs, fuel filter, had an induction system clean 20k ago so I know its probably not fuel injectors. New O2's etc. I was thinking first signs of fuel pump issue? Only reason I'm dubious of that is it fires RIGHT up no matter the conditions. Is there a spot to start? Just started happening last few weeks.