Just bought my first Audi and already need help, throwing codes

[KPFphotography]

I was wondering if anyone has seen these codes at all and how to fix.
I have a 98 Audi A4 2.8 Quattro. and the codes in throwing are
P0327
P1141
P1129
P1127

please someone help

[d993s]

P0327 is knock sensor, change it
P1141 is throttle leak or throttle position sensor
P1129 and P1127 is too rich or too lean on certain cylinders (clean injectors, replace fuel filter, check injector plugs, etc)