erratic idle

and Owl, which of those will cause no codes to be thrown?

Barzeen - now you're trying to confuse me with someone who understands Tuneboy.

It's taken me 3 years just to learn how to load tunes
 

" forgive me father for I am sinning........ right....... now........"




so seriously, I agree that this sounds like a TPS issue, but before I go throwing money at it I figured I'd ask around since I would think that a faulty TPS would throw a code ???
 
blastedbones said:
Classic TPS symptoms..IMO. get em to change it & see what happens.
+1 My symptoms were almost identical; dealer replaced the TPS and all was good. There were no errors posted due to the TPS being defective. BTW, TPS was covered by Triumph even though the bike was well out of warranty - a trip to the dealer is probably in order.
 

Yeah TPS doesn't throw any error code, it often behaves like a dodgy solder joint, ok one day & all over the place the next.
Once the TPS is done, check that your start up idle is normal. Mine would fire up to 2.5k revs( way too high) before settling like 10-15 secs later & then do the same thing again if I shut off & restarted it.
The cure was to run the ISCV program ( Tuneboy not tuneedit) in sensors ( for which I thank Warp for the prompt )
Basically hit the button & follow the prompts on the screen. takes like 20 seconds to do.