Throttle remapping possibility?

Post by **Elmojo** » Wed Aug 23, 2006 5:03 pm

Hi All,

I was driving around today, shifting as though I hadn't driven a manual in years, and thinking about the posts regarding the 'hanging RPM' issue our 6M Versas have. If you don't know what I'm talking about, either you don't have a 6-spd manual tranny, or you didn't read all the threads! Anyway, I was wondering if any of you electronics gurus could comment on the possibility of remapping or otherwise re-programming the computer to allow the RPM's to drop like most cars do when the clutch is depressed.

Any thoughts?

Post by **XterraVersa** » Wed Aug 23, 2006 5:10 pm

Must be a driving style causing it. My 6-speed doesn't hang the RPMs when I press on the clutch.

Post by **Elmojo** » Wed Aug 23, 2006 5:30 pm

Are you kidding?! Everyone else seems to notice it.

I've driven 4-5 different manual vehicles over the years, and this is the only one with this issue. Someone mentioned in one of the other posts that it was a characteristic of the throttle-by-wire system, which must be computer controlled, hence my initial question.

Post by **XterraVersa** » Wed Aug 23, 2006 5:50 pm

I seriously think it is in your shifting footwork, not a design flaw.

I tried on my Xterra to get the trottle to hang. If I press the clutch before I was off the throttle the RPMs would go up or stay the same for a second or two. If I am completely off the throttle before the clutch is fully disengaged, the RPMs drop.

The Versa is harder to try this since it has a short clutch. But I drive for fuel economy instead of speed/performance.

I can make the Versa hang the RPMs by changing my footwork, but I choose not to. I gues thats why I get close to 40 mpg while most everyone else is in the low 30s

Post by **cireecnop1** » Thu Aug 24, 2006 2:18 am

No I agree with you Elmojo, XterraVersa okay the one way that you will most definately notice the 'hanging rpm's' is when you are moving maybe at a steady "roll" 5-6 mph have your car in first let go of the clutch and the car will start to accelerate for you then all of a sudden the car starts to slow its self down like a normal car would when you are in a low gear. this is something i would like to see gone. it makes me shift like an old lady its gonna take a while to get used to.

Post by **MinisterofDOOM** » Thu Aug 24, 2006 6:46 am

XterraVersa wrote:I seriously think it is in your shifting footwork, not a design flaw.

I tried on my Xterra to get the trottle to hang. If I press the clutch before I was off the throttle the RPMs would go up or stay the same for a second or two. If I am completely off the throttle before the clutch is fully disengaged, the RPMs drop.

You won't be able to replicate the Versa's throttle hang in your Xterra because the Versa has electronic throttle-by-wire. That's what causes the common throttle hang in all newer manual nissans.

I'm not a big fan of throttle-by-wire personally. I can see the potential benefits but at this point in early implementation, they don't outweight the downsides.

I'd imagine there is a way to reprogram the behavior of the TBW, but you'd need access to nissan Consult equipment and knowledge of how it's programming works.

Post by **justmerging** » Thu Aug 24, 2006 7:05 am

just fyi, the TBW system isn't really that new. My 04 pathy has it and i think the 03's had it as well. I don't personally like it. give me an old school throttle cable baby, yeah.

Post by **MinisterofDOOM** » Fri Aug 25, 2006 3:00 am

I meant new from an automotive technology standpoint. It's still very new and "unperfected". But yeah, it's been on most Nissans since '03 or '04.

Post by **philmcneal** » Mon Aug 28, 2006 11:32 pm

i sure notice it on my ULEV civic that doesn't even have electronic throttle control! I find shifting just a little bit slower solves the problem... also the shifter likes it better too! Slides in like butter instead of resisting the shift.

I can't wait to test the 6spd to compare to my Honda's Civic 5spd.

Post by **BenDupre** » Sun Sep 03, 2006 6:42 am

Yes it's a problem. It was even noticed by more than a few early rewiewers and it appears an their write-ups. The manual I drove at my dealer before buying the CVT had the problem. It's one of the things that made me choose the CVT The other was that 6th gear is wayy too short.

Anyway, in at least one review it was reported that this was a known problem and it would be corrected before production release. Aparently it was not corrected. It still might be fixed in a software release yet to come.

Ben

Throttle remapping possibility?

Throttle remapping possibility?

Re: Throttle remapping possibility? (Elmojo)

Re: Throttle remapping possibility? (XterraVersa)

Re: Throttle remapping possibility? (Elmojo)

Re: Throttle remapping possibility? (Elmojo)

Re: Throttle remapping possibility? (XterraVersa)

Re: (justmerging)

Re: (MinisterofDOOM)

Re: Throttle remapping possibility? (Elmojo)

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