system codes- needs some direction please 6n2

[buxice]

Hi,
polo gti (2001) 6n2

Got a few codes showing up need some direction please on how to go about solving them?? and what costs will be involved???

1."FUEL TRIM System TO LEAN"

2. "CAMSHAFT ADJUSTMENT" BANK 1 MALFUNCTION

3. "CATALYST SYSTEM" BANK 1 "EFFICIENCY BELOW THRESHOLD"

cheers

[pologti76]

If you ask in the correct section you might get some answers mate