Audi s3 8l 4.5k revs limiter and fault codes

JD S38l

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Have recently had a vagcom scan and it has come up with these codes.
16486 mass air flow sensor (g70) P0102 35-00 signal too low
16518 oxygen lambda sensor B1 S1 P0134 35-00 no activity
17833 evap purge valve (N80) P1425 35-00 short to ground
17843 secondary air pump relay (J299) P1435 35-00 short to ground
17829 secondary air injection solenoid valve (N112) P1421 35-00 short to ground
17523 oxygen (lambda) sensor heating B1 S1
P1115 35-00 short to ground
It wont rev past 4.5k rpm. i think the maf sensor plug pins are shot and wonder if this may cause all these issues and fault codes. I have checked all the fuses and they seem okay or could this be down to a broken wire somewhere else or something along them lines?
 

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