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Q: pressure relief valve on 2001 Audi TT Quattro

would this cause a code reading secondary air flow .
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please provide the P code number of what you found. also,
is this a TT roadster (engine code AMU) or a TT coupe (engine code AMU or ATC or AWP)???
the p code is po411 engine code is amu this is a tt coupe 1.8 liter 225 hp with 46000 mi. thanks for the reply.
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alldata says:

p0411 is secondary air system; throughput faulty

(1) check secondary air injection (AIR) system
(2) check wastegate bypass regulator valve

thanks for the help ,will check these 2 items.as a side note the engine light only comes on when car is cold. and it runs great light or not.
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