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I came from the same school... I used Tunercat and Datamaster for my LT1 car and had to "relearn" how to tune when I got HP Tuners.

There is a lot of knowledge on this forum... if you spend enough...

What additional info do you want? The suggestions you made were both wrong... and others told you the defacto standard as of today. Return the IFR table to stock (or to accurately match whatever...

The new cables come with the MPVI interface... which connects via USB. If you're still a serial cable owner (I was until a couple of weeks ago), that cable will work with _certain_ high speed...

That tune has some idle tables effectively disabled while I work on it. I wouldn't suggest copying over anything related to idle until I get things sorted out. :)

The car really hasn't idled bad,...

Ttt

Thanks for taking the time to look through my files (also the explanation of the ETC scalar).

I'm trying to determine how you came up with the numbers you did. The plot value of the histogram is...

2001 Z06 w/ LG Pros (catted), G5X1 (228/232 112), VaraRam, Relocated MAF to front of TB

I've tuned VE to 0 to -5 and then added the MAF and adjusted to 0 to -3 (last scan showed about +2% at idle...

I was searching around and came upon this thread and realized I forgot to update it. I replaced my air bridge and relocated my MAF to the front of the TB and the slight miss went away. There seems...

Gotcha. I confused the terminology with Secondary VE. So the only thing that changes is the PCM ignores the MAF input (obviously) and runs on low octane timing? That doesn't make sense...

I've replaced the MAF. I suppose I'll do as Chris suggested and see if I can get consistently skewed fuel trims and then start swapping things around.

Just low octane VE? I don't think this vehicle has a low octane VE table.

Nothing in the tune has changed in 6+ months but I've developed a miss. I've replaced my valve springs (different...

What all happens when you disconnect the MAF on a fly by wire (2001 Z06) vehicle? I have a partial throttle miss that only occurs when the MAF is connected. I have already replaced the MAF.

I installed new valve springs, plugs, wires and cleaned my MAF (although it wasn't dirty) and the WOT miss is gone! :yay:

However, the partial throttle miss is still prevalent (if not stronger). ...

I have a new log file. This log is from another commute to work and does not contain any WOT runs (see below).

www.durhamcons.com/HPT/nomaf.hpl

The partial throttle miss seems to have gone...

The car still has the factory exhaust and I bet the 02s are original as well.

Come to think of it... valve springs aren't such a pain in the butt in C5s. And the LS6 replacement valve springs are only about $60. That makes it the least expensive thing to try. :D

Thanks for the additional reply, Chris. Unfortunately, the valve springs are the biggest pain in my @%&. I made a thread on Corvette Forum, not because I don't believe you, but because I don't want...

The suggestions in this thread have pointed at quite a few different possible causes. Given all of the information I've provided, what do you guys/gals suggest I do to rectify the problem? Can any...

FYI, I drove the car today and lugged it in high gear at 1k-2k rpm and the car pulled smoothly. It certainly seems related to RPM. I don't get traction in 1st or 2nd but when I try to go WOT, my...

FYI... I've put at least 20k miles on the car and the 02 sensors haven't been removed. The split STFTs are new. Thanks for the suggestion though.

The issue surfaced months after the last time the car was flashed. I can put the stock tune back in it if the consensus agrees.

I can't tell you exactly what frame the missing occurs... other...

Here is a scan I made last night on the way home from work.

http://www.durhamcons.com/HPT/slightmiss-wotbreaksup.hpl

Light throttle miss (frame 417)
===================
The STFTs max in...

You can see the split STFTs at around frame 475. I also have a dead spot at WOT around 5k. If I ease into the throttle, the car pulls strong to redline. However, if I go WOT the car falls flat...

I've got a very light miss/buck under light throttle and the STFTs max out in opposite directions. The car has 65k miles on it with the only engine modifications being a CAI. The intake manifold...

Leaner mixture and less timing.