tps fault.

[avaconirl]

Hello to all. The problem I have is the surge from 2k revs down to 1.5k and back up again and repeating. I have set as per instructions on fixkick.com but to no avail, have replaced with a new with the same fault rearing its ugly head. Code that is coming up is 45. It is the tps with the cable attached. The car is a 1997 vitara built by santana in Spain with an 8v engine.
Any help would be great as I am at my wits end.
P.S. I had this problem last year and after a reset all was well untill about 2 weeks ago.
Many thanks in advance.