Did they "Code" the new injectors to the ECU?
Anyway go back to the garage and ask them to check the coding.
As to your power loss I'd suggest you ask the garage to check the fuel rail pressure.
Oh and make sure the fuel filter is new.
But there's so many thing on these that could cause your power loss your going to have to go to a good diagnostic specialist.
Posted on Sunday 28th of August 2016Don't understand this? Ask a question