Fault code 2224 / MC2-engine

[Gerard]

Check wastegate diaphragm as well. They get weak and perish over time and allow boost air to the 
back of the gate keeping the gate closed. My old MC would show 1.9 bar with the limit being 1.6. It 
didn't perform sluggish or misfire, but the original ECU would just cut the fuel making for some 
interesting overtaking.

>> I have been troubled with an engined that won't perform; it misfires and
>> feels sluggish over 4-4500 rpms. I have replaced all kinds of sensors,
>> hoses, spark plugs; you name it, I've done it.
>> Tonight I suddenly got a fault code; 2224.
>>
>>
>> 2224 (Blink Fault Code), VAG1551/2 Fault Code Number 00544 Over boost
>> condition(1989-91 200TQ, 1989-91 200T) UK MB engine. Boost pressure exceeded
>> 1.6 bar for MC, 1.8 bar for MB Waste gate or pressure hose, Waste Gate
>> Solenoid/hose problem
>>
>> My ECU is chipped from Ben Swann.
>>
>> Will this mean that my N75-valve is malfunctioning?
>>
>> /Dag
>> 1990 Audi 100 Turbo Quattro Sport Exklusiv