Ok. Well if the pipe goes straight over to the pump on the passenger side, so it won’t cause running (lean rich) problems.

it does yeah am slowly running out of ideas. its booked in to have the lambdas replaced either way since they seem to be a ballache without a lift

but either way whoever had this car before put in the incorrect brake servo. the one i removed was from a regular RR not a SC RR

Did you connect the smoke machine to the engine ?

Check the EGR is Bolted on tight

does 4.2 SC have EGR? I thought that was a diesel thing?

And yeah I did, I pumped smoke thought intake and valve cover breather and no leaks from either of them

edit: theres a tiny leak from the airbox, but thats before the MAF sensor, so i assume itd be metered air, not unmetered.

edit2: the only thing is when the engine is off, is the throttle open? otherwise I assume if its closed then smoke is going nowhere?

Yeah they do have EGR. It maybe below the throttle

Yeah the throttle would be closed. The other side is much more sensitive to leaks

One of the cam cover breathers May go to that side of throttle. Have a look

Bled the brakes, all okay I think. Bit unnerving when the abs pump starts to make noise haha

Only thing is I've got the brembo brakes which has two bleed screws but I only bled from one. The iid tool didn't say anything about bleeding from both, will it of bleed both sets of pistons?

it will have 2 bleed nipples for a reason. (i assume either side)

as you haven't messed with the calipers you may get away with it

Well braking feels much better. I've noticed with abs there's a slight lock up then it kicks in. While for other cars I've had it kicks in much faster, that normal? Either way braking is much better and it's all fresh fluid