The rich/lean DTCs are threshold based. It could be that both banks are very lean but only one is above the threshold. Fix what’s in front of you and re-assess afterwards.
The smoke is oily (it uses baby oil) you don’t want that on the MAF.
Good point, thanks.
Mine split in exactly the same place. Bit of a stupid design, as the 'branch' is stretched all the time.
This is the third in seven years
When mine split I was getting misfire codes on random cylinders and the engine would 'cough' several times when cold. I presume because the air through the split is unmetered and random the MAF and injection system haven't got a clue what's going on so can do random things which cause random faults.
I know what you mean. I spent a morning replacing my intake boot and tank vent solenoid. Took it down the road to test it; 100 yards from home the dash lit up with DSC and ABS lights. Turns out a wheel speed sensor chose that very moment to go AWOL. Back on the phone with a still warm credit card in my hand!
