Recent Topics
So You Think Tires Are Expensive Now?
by SubLGT
10/30/14 12:23 PM
Grades of Aluminum
by whizbyu
10/30/14 11:44 AM
Liqui Moly Oil Saver Question
by Ddub
10/30/14 10:33 AM
Chevy suburban 4x4
by lawman1909
10/30/14 09:34 AM
At what point to drop comp/collision insurance?
by Quattro Pete
10/30/14 09:18 AM
$10 off any $50 gas card w/ $50 purchase at Publix
by LT4 Vette
10/30/14 08:39 AM
Tire Review-AltiMAX RT43
by Char Baby
10/30/14 08:18 AM
2014 Ram 1500 3.0l VM Diesel UOA
by Shaker223
10/30/14 07:39 AM
2012 Elantra 1.8
by dlundblad
10/30/14 07:37 AM
Why The Demise of Timing Belts?
by doitmyself
10/30/14 07:00 AM
Most shootings occur after an argument...
by Shannow
10/30/14 05:54 AM
expectant couples
by dnewton3
10/30/14 05:35 AM
Newest Members
FiveOhTorx, conefree, NEVALEAK, kevmor99, macbaxter
51742 Registered Users
Who's Online
95 registered (2010_FX4, Atesz792, Astro14, 77GrandPrix, asiancivicmaniac, 7 invisible), 1693 Guests and 155 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
51742 Members
64 Forums
221407 Topics
3501408 Posts

Max Online: 2862 @ 07/07/14 03:10 PM
Donate to BITOG

Page 2 of 2 < 1 2
Topic Options
#3221704 - 12/19/13 01:58 PM Re: Eco - what does it really do? [Re: coopns]
R2d2 Offline


Registered: 12/08/08
Posts: 527
Loc: New York, L.I
Its the rear bank, when it does happen.
_________________________
2014 Acura MDX
2011 Honda Accord V6 coupe

Top
#3221738 - 12/19/13 02:31 PM Re: Eco - what does it really do? [Re: SIXSPEED]
SIXSPEED Offline


Registered: 08/12/10
Posts: 468
Loc: Arizona
Originally Posted By: SIXSPEED

The following linked article from Motor Magazine describes their observations and analysis of VCM operation on a 2012 Pilot. On page 18 they state that the Eco light had no correlation to actual VCM operation and that the Eco light came on when acceleration was not heavy or under a steady load.

http://www.motor.com/article_pdf_download.asp?article_ID=2108


It's interesting that the author of the Motor Magazine article observed a 10% duty cycle on VCM (cylinder deactivation) operation where it was on for 10 seconds and off for 90 seconds. So it appears the cylinders are only deactivated for a small duration at least during their test scenario at a steady load, speed and RPM rather than continuously.


Edited by SIXSPEED (12/19/13 02:33 PM)

Top
#3221766 - 12/19/13 02:52 PM Re: Eco - what does it really do? [Re: willbur]
Hokiefyd Offline


Registered: 06/24/04
Posts: 11487
Loc: North Carolina
Originally Posted By: willbur
The front cylinders? Are you sure about that? Perhaps I'm wrong but my understanding is that the number three cylinder is the troublesome one and it's on the rear bank on the drivers side. This bank gets all the hot air.


You are probably more familiar with it than I. I had thought it was the front bank. My bad, and thanks for the correction.
_________________________
Cheers,
Jason

2008 Honda CR-V EX-L (QSUD 5W-30)
2005 Acura MDX Touring (FMC 5W-20)

Top
#3222358 - 12/20/13 07:27 AM Re: Eco - what does it really do? [Re: coopns]
supton Online   content


Registered: 11/09/08
Posts: 4941
Loc: NH
I had a rental Rio--Accent?--small Kia of some sort, I4/4spd auto, with an Eco light. I think if I accelerated slow the light would come on; it would seem to upshift faster and was less sensitive to throttle.

Stupid light would go out the moment I hit 70.
_________________________
2004 VW Jetta Wagon, TDI, 5spd manual, 301kmile, his
2011 Toyota Camry, base, 6spd manual, 82k, hers
2010 Toyota Tundra double cab, 4.6L, auto, 90k

Top
#3222389 - 12/20/13 07:55 AM Re: Eco - what does it really do? [Re: Hokiefyd]
Miller88 Online   content


Registered: 04/09/08
Posts: 6855
Loc: Onondaga County
Originally Posted By: Hokiefyd
Originally Posted By: willbur
The front cylinders? Are you sure about that? Perhaps I'm wrong but my understanding is that the number three cylinder is the troublesome one and it's on the rear bank on the drivers side. This bank gets all the hot air.


You are probably more familiar with it than I. I had thought it was the front bank. My bad, and thanks for the correction.


The front bank is the one that sludges up and destroys the camshaft.
_________________________
'11 Focus PYB 45K
'00 Cherokee PYB 125K

Top
#3223002 - 12/20/13 06:31 PM Re: Eco - what does it really do? [Re: coopns]
mclasser Offline


Registered: 04/13/13
Posts: 378
Loc: DC
Originally Posted By: coopns
Honda Ody 12. I don't drive it much (wife does) but when coasting...Eco light comes on. Wife mentions it seems to 'suspend' the engine, she doesn't like the feeling. I just noticed it a bit the other day, could gently feel it.

Does it do something or is it just simply informing us?

Thanks.


My Pilot has the same VCM engine as your car. Some people say the ECO light illuminating isn't always related to the VCM engaging but everytime the light comes on for me, I feel a slight vibration which to me means the VCM is activating.
_________________________
-- 2013 Honda Pilot EX-L 4WD
-- 2002 Honda Accord EX-L SULEV: 180K miles
-- 2002 Infiniti I35: 90K miles

Top
#3223100 - 12/20/13 08:00 PM Re: Eco - what does it really do? [Re: mclasser]
Trav Offline


Registered: 11/20/06
Posts: 10042
Loc: MA, Mittelfranken.de
I cant say about the 2012 but every Honda I have worked on with VCM the eco light is directly related to VCM operation, I don't think they changed.
Other makes that use similar eco lights may or may not have VCM it may be just a simple vacuum operated switch.
Higher vacuum turns the light on (eco), lower turns it off.
_________________________
ASE L1, Master. Deutsch Meisterbrief.

Top
#3223102 - 12/20/13 08:03 PM Re: Eco - what does it really do? [Re: Miller88]
willbur Offline


Registered: 06/06/13
Posts: 44
Loc: sw ohio
FRONT BANK AND CAMSHAFT? Please provide your source for this info, or is just your opinion/conjecture? Look up Honda TSB SB-13-078 which addresses the V6 VCM issue and the class action lawsuit and settlement. Honda extends the warranty from 5 to eight years. It's about piston rings and rear bank, not camshaft.

Top
#3228732 - 12/26/13 09:39 PM Re: Eco - what does it really do? [Re: coopns]
wtd Offline


Registered: 06/25/02
Posts: 1178
Loc: southwest Mo.
Back in August I test drove a 2013 Challenger R/T with the 5.7 Hemi that had the Eco display and I could always tell when it went from 8 cyl. mode to 4 cyl mode. I didn't like how it felt and is one of the reasons I didn't buy it. I also test drove a 2010 Camaro SS that had this system but I couldn't tell when it was operating. I ended up buying a Mustang GT without this system. I don't want a vehicle that has it.

Wayne
_________________________
2014 Mustang GT
1998 Chevy K3500
1998 Chevy K1500
(2) 1992 Cavaliers
1970 Monte Carlo

Top
Page 2 of 2 < 1 2