VTPS fuel cut setting in TunerStudio?
 

Currently tuning and running into something weird. If I go like 90% throttle it revs up just fine. But if I go all the way to 100% then it feels like fuel cuts for a second and then comes back on. Is there a setting somewhere that would do this or do I just need to work on my tune?

ADJ

It will just be the tune, keep working on it. I hope you are N/A.

Dann

Yep still N/A. I'll keep working on it. Just thought it was a bit weird that 90% throttle was different than 100%

Post a log of it happening and your tune?

where's the log and msq so we can tell you exactly what you failed to tune properly?

Log of my fail and tune.

Looks like you have the opposite problem: Too much acceleration enrichment dumping more fuel than you need.

Matt,

I have an ms3+ms3x and can't find the acceleration wizard that is mentioned in your documents. Is it only on certain firmwares? I have tunerstudio beta.

I seemed to have fixed my problem, definitely running better. Here was my original TPS accel "curve":

http://i57.tinypic.com/k52438.jpg

And after some messing around:

http://i57.tinypic.com/2uoq98y.jpg

It is working way better, and no more lag when accelerating.

Attached my new log file.

42% threshold? that can be dropped to like 5%.

actually it can be zero and you just tune the curve correctly.

I'm assuming right now your tip-in is twitchy/rough as hell.


although, is that plot while you are idling? that's some noisey-ass TPSdot.

I'm actually basing the tune off a map you posted in another MS3 build thread combined with Westfield's map. Do you have a current tune I could pull some settings off of?

my accel pump values look nothing like that.

maybe AE wizard on like an MS1, maybe.

Must be from an old tune. It was pulled from an MS3 build thread where the guy struggled for a long time to build it and you posted up a tune. Would you mind sharing your current tune?

Found this. Is it current/good?

good start, yes.

This is what I came up with that works best for me. I had to ramp it up higher to get rid of some lean conditions. And then blend in the MAP accel settings to get it to add fuel when letting off the clutch without the gas. Any suggestions for fine tuning this.

http://i58.tinypic.com/1so9ya.jpg