Quick reply in workshop now !!

[Bradderz_1988]

Right still seeing 6 psi of boost since changing the splitR to a 007p it's better and not dropping to around 2psi at all as before I could see peak of 6 or 2 in low gears put code reader on this is what I have -

00561 mixture adjustment control

Is this because of the lack of boost or is this causing it ?

 

[aragorn]

More likely an airleak or similar.

From Rosstech:

Possible Causes

• Mass Air Flow Sensor (G70) faulty
• Fuel Pressure too Low
• Leaks in Intake Air System and/or Exhaust System
• Injector(s) faulty (i.e. coked)

Possible Solutions

• Refuel Vehicle
• Check Fuel System Pressure
• Check Mass Air Flow Sensor (G70)
• Check Intake Air System and Exhaust System for Leaks
• Check Injection Quantity
• Check Injector(s)

 

[Bradderz_1988]

My decat is blowing a bit as I couldn't tighten the nut under the manifold as the pipe was restricting it.