UpRev ECU tune results for Semtex's Z

RCZ

I don't know where you guys are getting the idea that anyone is saying otherwise. I don't doubt the integrity of either of these institutions. That is why I expect them to take care of it very quickly. People have to understand that these things happen and that they often are easy quick fixes.

I was thinking about this and wondering if you guys don't think it might not be UpRev's problem, but rather the effect of a Nissan safety feature responding to what it perceives as a problem. What I mean is that maybe Nissan has built in coldstart safety features. I know I've felt that hesitation where you push down and it does nothing and then lurches forward. I know the feeling you guys are talking about because I've definitely felt it (to a lesser extent) on my stock tune. So maybe its the ECU responding more aggressively to protect the engine during cold startups. I know there are lots of "maybes" here, but I'm just throwing out a somewhat logical explanation that may give someone an idea as to what's going on.

Just being logical eliminates tuners from the equation. The only two things everyone has in common are the uprev ROMs and the Nissan ECU. I doubt, after all these years of programming for Nissan and uprev's usage of other stock ECU functions, that they would have mistakenly cause a silly issue like this. Kinda leads me to think that the culprit is the new player in the mix...

B1nks

Makes sense, definitely possible.

semtex

I think B1nks was responding to NIZMOZ's assertion that "Sounds to me like Sharif is making excuses" when he stated that he doesn't think Sharif is screwing me. So I just wanted to be unequivocal in my agreement with him is all.

As for your theory about this being a coldstart safety feature, sure it's possible. But whatever it is, that doesn't mean we can't desire for UpRev to find a way around the 'feature', if they can. Unlike you, I never experienced this behavior in my car prior to the tune. So if it's a safety feature responding to a perceived problem, it's a perception that didn't exist in my particular car prior to the tune. Does that mean there really is a problem that now exists as a result of the Uprev flash? Or that there is no problem but the Nissan ECU is now confused? Who knows. But time will tell, after Uprev does their investigation. On the off chance that they say this the way it is, we have to live with it, I'm prepared to do just that. But at least people will know what to expect with Uprev tunes for this car moving forward.

__________________
"There are no small accidents on this circuit." -- Ayrton Senna
316.8whp & 248 ft/lbs (Dyno Dynamics) | 319whp & 256 ft/lbs (DynoJet) (04/23/10)
Stillen G3 CAI, CBE, Pulley / F.I. LTH / GTSpec Ladder Brace / Setrab Oil Cooler / UpRev-tuned by Forged Perf.

B1nks

Yeah, that's what I was referring to. I too did not experience this problem prior to the flash on my stock settings. I'm hoping UpRev chimes in sometime today with any sort of news. Semtex do you know if Sharif has contacted UpRev about this yet ? I would assume he has but if he hasn't I will just to let them know what's up.