I did think the wiring could be at fault because of the implausible signal in the fault code. IRRC there is a earth under the battery. How did you open up your controller, I cant remember but there not screws on it to open it isi.
I wouldnt say my idle is lumpy but when the engine is hot I get a bit of a surge and then a hesitation when pulling off and noticed recently I get a slight pause when changing gear on WOT. It even worst when driving up hill very slow but its intermittent.
So cleaning the probe for you didnt do anything, have you tried anything else. What size is the bolt if you can remember, 17mm maybe.
hi ,mate yeah its a 17mm spanner easy to do if you take the top off air box.. this is all i tryed i at the min but i think i might need a new one tps quoted 182 inc vat for trade can see any other people doing it tryed euro car parts and gsf they dont reconise the part number ..