Possible maf trouble

[revlimit]

Hi i have a 51 plate cupra, i have had trouble with poor running and misfires.
i have had a rac diagnostic on it and it came up with wis fire on all cylinders and running lean.
i have replaced all plugs and coil pack but still not right.
the fualt codes coming up now are -
17704 - no info
17705 - no info
17536 - Bank 1 mixture adaption (mult) system to lean sporadic fault

it has been playing up for some time, i have a green panel filter fitted and thats the only upgrade i have done. i have also replace a small pipe that had split at the front and also checked the dv which seems fine.
the car drives normally until you put your foot down and then it plays up.

im thinking its the maf, any ideas ?
also how much would a new maf cost ?

 

[revlimit]

Any one have any advice ??????

 

[LEE69]

17704 comes back as coolant temp sender faulty did mine today piece of cake takes 5 minutes most ( have a search)

As for the others look here
http://www.seatcupra.net/forums/showthread.php?t=47135

 

[billyhas]

17704 P1296 Cooling system malfunction
17705 P1297 Connection turbocharger - throttle valve pressure hose
Have a look in VAG-COM section on here.Sorry, can't tell you the remedy but there is a mine of information at your fingertips.Just have a look at the various sections on the forum and do a search.I think most problems will have been covered already at some time