LS2 TPS issue

[Ritch]

I am looking for a little bit of advice before I shell out some cash...

I'm having a few issues with my C6 Corvette and am learning tuning after years of reading about it.

I noticed the other day that I have a bit of a sporadic TPS trace when i'm viewing the data live. I have posted a youtube link so you can see what I mean. It does this whether running, idling, cruising, KOEO etc. It seems to spike now and again.

The weird situation is (and I suppose why i'm checking here with you guys) - when I review a log, zoom out and then zoom in, it seems that HPtuners smoothes out the trace and the peaks aren't visible, it just seems to average it out a bit? To clarify, if I stop logging I can obviously still see the peaks, one zoom step in, back out to original zoom and boom - no peaks???

My TPS voltage trace seems steady and coherent, do I have a problem or not? I have cleaned the wiper arm within with no change. I would be gutted if I spend $500 on a new TB to find there is no issue?

Thanks all, vids below...

https://youtu.be/ZscsR9T_cBA

https://youtu.be/ny4qhPCNtU8

[cadillactech]

Can you post an actual log? Can't view the videos, says they are private.

Are there any DTCs setting? Any drive ability concerns?

[Ritch]

Sorry, vids published now so should work - I will post a log later but as I say, when reloaded and replayed the spiking you'll see in the video disappears.

The drive ability issues I am having are deserving of a thread on their own (work in progress) but in a nut shell I am getting cruise control/idle hang issues following a tune done locally here in the UK some time ago. I also discovered some horrendous vacuum leaks, rich running, VE table pretty much disabled etc, I'm trying to work through stuff in a logical manner.

I recognise what you're saying ref the log and tune, I will definitely do that, I just wanted to clean up as much around the periphery before I start getting into the weeds.

[blindsquirrel]

Saying 'C6 Corvette' doesn't really narrow it down at all, not much more than saying 'my car that I own and am working on'. Year, engine, trans, and tune/log files allow other people to understand what you are working with.

[twoutes]

I'm chasing a TAC issue and mine does the exact same thing. Apparently, it's normal? tps.JPG

[Ritch]

OK I apologise for lack of info. I have a few bits going on and it was always my intention for a more complete 'post' with log and tune. I'll work on that now and would appreciate you guys and any others having a look over it.

I was just trying to rule out this one 'obvious' issue without maybe preloading the other stuff. Being in the UK means if I need any bits it can be a bit of wait for shipping so I suppose I was just trying to see if this was a 'smoking gun'.

Anyway, i'll get on that post now....

Thanks twoutes, that does look similar to what I have going on.