Hi All.

I have a 2010 Discovery that triggers restricted power mode when cold. I have checked MAF readings, switched units and same readings occur, (low reading remains on bank 1) so I presume a leak on Bank 1 ?
At idle
Bank 1 0.4 g/s
Bank 2 22.3 g/s

At 2000rpm
Bank 1 2.0 g/s
Bank 2 78.4 g/s

Any help appreciated on whether these figures point at air leak or are in fact normal figures.

Thanks

OK, I realise now how the turbos function.
Did a smoke test and found the leak, repaired and fault fixed.