leon cupra n75

[mrvavavoom]

hi guys on vag com what do i need to log to check my n75f valve is working properly and what should i look out for

thanks in advance

 

[Cupra Ross]

hi guys on vag com what do i need to log to check my n75f valve is working properly and what should i look out for

thanks in advance

You need to log blocks 115 and 118. Check on 115 that once past turbo spool revs (3 to 3.5k rpm) specified boost and actual boost are identical or near as damn it. If they are miles apart, check the boost duty cycle in block 118. If its close to 100 at a given rpm and the spec vs actual boost numbers are still miles out at that rpm, you either have a boost leak or a dicky N75 valve.

 

[mrvavavoom]

thanks very much