Gavyjoe

Hi everyone, looking people's help, noticed my car was only boosting till around 1 bar of boost when it should be 1.6 bar, closer inspection revieled my stock intake pipe had parted from my turbo (mdx321t) as it was ripped, took top part of manifold (reversed) off and replaced pipe,built all up and now the car is hitting 1.8 bar boost and missing badly,but only when on load, will rev out cleanly when sitting in neutral but, changed plugs as it felt like it was blowing the spark when on boost but to no avail, coil packs,boost solenoid,map sensor have all be changed, switched onto my spare fuel pump and filter also but still no good. Car is a 2.1 type r fitted with syvecs etc, any help or suggestions would be appreciated.