bowthom
Posts: 652
Joined: Sun Jul 18, 2010 12:22 pm
Delivery Date: 23 Feb 2011
Leaf Number: 307
Location: Portland Oregon

Re: Speedometer Reads 6% High

Tue Jun 28, 2016 4:33 pm

TomT wrote:Nope, the speedo on my 2017 Volt is dead on... Our 2013 CUV is also dead on... Nissan is simply lazy or playing a game...

bowthom wrote:According to mfr specs and DOT regs a speedo error range must be +2.5/-0, so all speedos read fast when delivered.


Nope back at ya, ;)
It is permissible for a speedo to be "dead on" it is not permissible for it to read slow. +2.5 / -0 for error.
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dhanson865
Moderator
Posts: 1493
Joined: Wed May 25, 2011 7:12 am
Leaf Number: 16156
Location: Tennessee

Re: Speedometer Reads 6% High

Tue Jun 28, 2016 6:31 pm

NeilBlanchard wrote:I think that both the speedometer and the odometer are tied together. So, if one is off, then they both are.

I noticed that a software update mostly corrected for the 16" wheels on our Leaf S vs the 17" on the SV / SL models.


indirectly they are but each has a different multiplier. That is why you can go into the center screen on a SV/SL and adjust the speedometer without it affecting the odometer.

So in practical terms the two aren't linked at a fixed ratio.
Blue 2012 Leaf 195/65/15 tires, 15" Rims
Silver 2012 Leaf 16" stock wheels
wiki/index.php?title=Real_World_Battery_Capacity_Loss
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TomT
Posts: 10605
Joined: Sun Aug 08, 2010 12:09 pm
Delivery Date: 01 Mar 2011
Leaf Number: 000360
Location: California, now Georgia
Contact: Website

Re: Speedometer Reads 6% High

Tue Jun 28, 2016 6:44 pm

You missed the point: Many manufacturers can and do make speedos that are dead-on... Nissan choose not to do so for unknown reasons...

bowthom wrote:
TomT wrote:Nope, the speedo on my 2017 Volt is dead on... Our 2013 CUV is also dead on... Nissan is simply lazy or playing a game...
bowthom wrote:According to mfr specs and DOT regs a speedo error range must be +2.5/-0, so all speedos read fast when delivered.
Nope back at ya, ;) It is permissible for a speedo to be "dead on" it is not permissible for it to read slow. +2.5 / -0 for error.
59,991 miles/12 bars/289 Gids/68.54 AHr/101% SOH/101.64% Hx 7May15 w/ new Lizard (barely made the warranty).
71,770 miles/12 bars/256 Gids/59.04 AHr/88% SOH/87.92% Hx 3Mar16 at lease return.

Now driving a 2016 Volt Premier.

Evoforce
Posts: 824
Joined: Wed Mar 04, 2015 9:58 pm
Delivery Date: 28 Feb 2015
Location: Fountain Hills Arizona

Re: Speedometer Reads 6% High

Wed Jun 29, 2016 4:50 am

Yep, all three Leafs we are using are off about 2 mph.
*2011 Leaf 1 bought 2/28/15 @ 28,000ish mi 10 bar (8 bars @ 11/25/15 @ 37,453 ) (New lizard @ 39,275 mi @ 1/20/2016) Now 52,166 mi.
*Tesla Model S 61,000 mi
*2011 Leaf 2 bought 4/28/15 @ 24,000ish mi 12 bar (new lizard Dec. 2014 @ 22,273 mi) Now 35,485 mi

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keydiver
Posts: 1080
Joined: Mon Sep 05, 2011 1:04 pm
Delivery Date: 08 Dec 2011
Leaf Number: 16484
Location: Hobe Sound, Florida
Contact: Website

Re: Speedometer Reads 6% High

Wed Jun 29, 2016 1:41 pm

NeilBlanchard wrote:I think that both the speedometer and the odometer are tied together. So, if one is off, then they both are.


In most cars, they are driven by the same speedometer cable, or electronic sensor in newer cars, but that doesn't mean they are off by the same percentage. In a mechanical speedometer, there are 2 separate internal mechanisms that drive the odometer vs the speedometer. So, as in the case of my Mazda 626GT, the cable was driving both instruments 4% too fast, but then the speedometer part of the mechanism was another 3% high on calibration.
On some cars, you can order a speedometer drive gear for the transmission that has a different ratio, and correct the error that way. I seem to remember some of the DSM cars were shipped with the wrong speedo gear, and the fix was to order the right dealer replacement gear. I don't know if Nissan drive gears are interchangeable.
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knightmb
Posts: 420
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Leaf Number: 414897
Location: Franklin, TN

Re: Speedometer Reads 6% High

Wed Jun 29, 2016 3:51 pm

Evoforce wrote:Yep, all three Leafs we are using are off about 2 mph.

I tested a few of mine and some family, all were off by 5% to 6% too high. Does that mean they all need be to set to the lowest -2.5% to try to correct for it. Is that correction the right direction for a speed reading that is too high? Lower it as much as possible in the settings?

dhanson865
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Location: Tennessee

Re: Speedometer Reads 6% High

Wed Jun 29, 2016 5:27 pm

knightmb wrote:
Evoforce wrote:Yep, all three Leafs we are using are off about 2 mph.

I tested a few of mine and some family, all were off by 5% to 6% too high. Does that mean they all need be to set to the lowest -2.5% to try to correct for it. Is that correction the right direction for a speed reading that is too high? Lower it as much as possible in the settings?


Yes, I think so. That is how I'm running mine.
Blue 2012 Leaf 195/65/15 tires, 15" Rims
Silver 2012 Leaf 16" stock wheels
wiki/index.php?title=Real_World_Battery_Capacity_Loss
(efficiency 3.x KW vs 6.x KW)
please join Truedelta.com and input your repairs.

GerryAZ
Gold Member
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Location: Phoenix, AZ

Re: Speedometer Reads 6% High

Wed Jun 29, 2016 9:30 pm

With 44 psi in tires my 2015 (17-inch wheels with stock tires) is within 1 mi/hr of GPS at any speed. Odometer reads slightly less than actual distance traveled (about 0.5%). Odometer indicated greater than actual distance traveled on 2011 (16-inch wheels with tires at 44 psi) and speed was slightly optimistic even with multiplier adjusted as much as possible in navigation unit.

Gerry
Gerry
Silver LEAF 2011 SL rear ended (totaled) by in-attentive driver 1/4/2015 at 50,422 miles
Silver LEAF 2015 SL purchased 2/7/2015

NeilBlanchard
Posts: 619
Joined: Sat Oct 11, 2014 5:02 pm
Delivery Date: 14 Oct 2014
Leaf Number: 306278

Re: Speedometer Reads 6% High

Thu Jun 30, 2016 10:37 am

Right, the 17" stock wheels are probably much more accurate. The 16" stock wheels are the ones that are having the much lower accuracy - the speed and the distance registered on the odometer are too high.

LeafMuranoDriver
Posts: 350
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Delivery Date: 01 May 2015
Leaf Number: 323189
Location: Los Angeles, CA

Re: Speedometer Reads 6% High

Thu Jun 30, 2016 1:59 pm

NeilBlanchard wrote:Right, the 17" stock wheels are probably much more accurate. The 16" stock wheels are the ones that are having the much lower accuracy - the speed and the distance registered on the odometer are too high.

Do you have proof of the bold part? I think if there is definitive proof, many that dropped their 4th bar right after 60k miles could show this proof and the car would actually be under 60k miles and qualify for a new battery.
2015 Leaf S w/ QC
Mfg: Jan. '15 // Pur: May '15
Best: 6/27/15 - 1,416 Miles - 292 GIDs - 63.11 Ahr - 22.6 kWh - 100% SOH - 97.2% Hx - 4 QC, 29 L2
Worst: 12/12/15 - 4,616 Miles - 259 GIDs - 55.02 Ahr - 20.1 kWh - 99% SOH - 82.8% Hx - 17 QC, 96 L2

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