Corsa-B.uk - Vauxhall, Opel and Holden Corsa B Owners Club

My daughter has a 1.0 12v Corsa Club 1999 which drives fine with light pressure on the accelerator but if you put you foot to the floor to get some acceleration or try to go uphill the EML light comes on and there is NO acceleration at all! I have heard of the paperclip test but apparently it wont work on this engine! Have tried to read the codes with a friends OBD II code reader but it wont connect - Link Failure - any ideas how I can find out if there are any fault codes? or any suggestions as to what may be the problem?

i had this problem on my old 12v it was struggling to rev high so i unplugged the air flow meter it revved alot better replaced it and problem sorted.

to be fair....when i put my foot down in my 1.2 8v! car doesnt actually move as much as when i slowly increase revs