Im getting these P-codes and need your analysis and suggestions please.

P0171 - Multiplication injector adaptive fuelling - lean limit
exceeded LH bank
P0174 - System too lean (bank 2) - Multiplication injector adaptive fuelling - lean limit
exceeded RH bank
P1129 - O2 sensors swapped bank to bank (sensor 1) - Front sensors transposed
P1172 - System too rich (bank1) - Additive injector adaptive fuelling - rich limit exceeded
LH bank
P0130 - O2 sensor circuit malfunction (bank 1, sensor 1) - Front sensor LH bank stoichiometric ratio outside
operating band
P0150 - O2 sensor circuit malfunction (bank 2, sensor 1) - Front sensor RH bank stoichiometric ratio outside
operating band
P0102 - Mass or volume air flow low input MAF signal < minimum threshold, which is speed
dependent

Condition: Smooth to rough when driving. Idle low, splutters, sometimes dies and sometimes normal. Drives smooth but hesitates. Black smoke sometimes when press gas while driving. Sometimes normal.

Work done: Replace wires, coil, plugs prior to misfire codes then O2 codes showed up then replace all O2 sensors with Bosch. Reset. Then above codes showed up.
Could it be a faulty new replacement MAF? Not enough air to burn fuel? Tried removing the air filter to see what happens but same condition. Im thinking also that the P0102 showed up because I unplug the MAF, but no change at all. Replaced almost everything but condition did not improve. Could it be injectors?
Thanks

 

Seems weird that all this has popped up at once. Shot in the dark, but check the ground at the back of drivers side head to firewall. Seems like you have a gremlin and not an actual o2 and injector problem.

 

That might be it. Hopefully. To be more specific, where is the driver side head to firewall? Is that in the engine side firewall or between the fuses and the firewall. What is beside it? Any landmarks? I have been observing and thinking why the ultragauge kept shutting down. Also the fuel gauge on the scanner dont work unlike the other disco. I hope its not within the dashboard. Thanks Abran

 

There's a small green ground wire on each side at the very back of each head, and there's also a braided strap that goes between the driver's side head and the firewall. It should be bolted pretty securely to the head, but it's only a small bolt that holds it to the firewall.
It's likely to be a bit tricky to get to with the rocker cover in place but I think it should be possible to undo the bolt, clean the area, and reconnect with some dielectric grease for good measure.

 

^what he said!

 

Whose O2 sensors did you use? You really need to make sure the connections are fully locked in. When I replaced my front O2's I had one defective one right out of the box, and the other was not fully seated so I popped almost all of the codes you have. Make sure you also trace the the wiring from the connectors into the wiring harness to make sure there are no breaks.