Hi there this is my pro.

A few days ago my car was ideling very low and i notice that one of my chrom air intake pipe had come loose,so i fixed it,once i did my revs shott up to 1500rpm and have stayed there ever since.

Now when im driveing my power is up and down,so i was told could be my throttel sensor so i took one of my old engine and tried that,but made no diffrence same prob hight revs,took it to a garage had them have a look said the samethrottel sensor tried to adjust the sensor but best reading was 1500 rpm,so on the way home it was ten times worse looseing power then power comeing back and so on,and ive notice when i lossen the air intake pipe and have a wee gap the revs go down to normal,so my ? is after my long story is it my sensor which i can replace easylie or is this some thing else.:(

try cleanin ur trottle body as these gave me same prob once a while back. how did u adjust the tps. iv been told to set it to 4 to 4.5. i have a conzult but if u dont there r other ways of doing this. other will let u know how. also check connection to the tps, clean wiv electric contact cleaner as with other connections on her as they tend to get fairly bad over time.