MG ZS td - trouble after installing sdi. Plz Help!!

Hey all, I'm new to these forums and am in a bit of a pickle about my most recent mod, so I read online and from friends that the single most effective mod that can be done to a l-series engine is fitting some sdi injectors... I'm sure this is the case in most situations but I don't even know how to begin to describe what I drove away from the garage with. Basically my ZS (2.0 td year 2005) has the boost turned up to 19 and I have a "Ronbox" digimafam that has been set to the right setting... I think. However the engine is sluggish and loud and very very jittery and vibrates unbarey over 2000 revs and is completely un drivable in 4th and 5th gear and even with the pedal to the floor it will gradually climb from 50 mph to 80mph in about... 1:30mins and I must have drove it only 20 miles today and it has drunk almost a quater of a tank of diesel... I will state that the injectors I bout have been stamped with the right number of bar and were clean to the naked eye so I didn't wash them, I am dreading driving it to work tmorrow and I am very disappointed and wish I had my Loved ZS back to working order, if anyone has any idea what is wrong please any advice would be very helpful.



Thanks

Jack

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