Drive Accord Honda Forums banner

1 - 12 of 12 Posts

·
out of control
Joined
·
2,302 Posts
Discussion Starter #1 (Edited)
For the guys/gals with 2011 coupes, does VCM kick it into 6 cylinders when you put it into "S mode" or does VCM (eco light) still activate/deactivate while driving? I'm curious because I'm in the market for an 8th Gen V6 coupe.
 

·
Honda Product Specialist!
Joined
·
92 Posts
I'll go drive one at work tomorrow and tell you the answer to this question. Pretty confident the S mode deactivates VCM. But we'll see.
 

·
08 Accord V6 Coupe w/ NAV
Joined
·
3,260 Posts
Does it even have the "S" mode? From what I've read the paddle shifters are kind of like moving your tranny from D to 2 (of course paddle shifters would add 1 as well).
 

·
Registered
Joined
·
1,255 Posts
If its helps, ive got an Aus vcm model with S and paddle shifters, and eco mode still works ... the only difference between D and S mode is basically that S mode will not upshift without your input on the paddles.
 

·
Vtahk didnt kick in
Joined
·
4,097 Posts
Does it even have the "S" mode? From what I've read the paddle shifters are kind of like moving your tranny from D to 2 (of course paddle shifters would add 1 as well).
yes S mode is there. I drove the 11 model today and I think the eco light still flashed with the pedals working, but was not 100% sure.
 

·
Low Gear
Joined
·
2,935 Posts
We should seperate that eco does not mean vcm. eco just means the engine is being efficient. It can still be efficient running all 6 cylinders.
 

·
Banned
Joined
·
885 Posts
We should seperate that eco does not mean vcm. eco just means the engine is being efficient. It can still be efficient running all 6 cylinders.
That's not what I was told by the dealer (he could've been wrong). He said when that comes on, the engine ahs dropped to 3 or 4 cyls. I wonder if this is in the manual somewhere?
 

·
Low Gear
Joined
·
2,935 Posts
That's not what I was told by the dealer (he could've been wrong). He said when that comes on, the engine ahs dropped to 3 or 4 cyls. I wonder if this is in the manual somewhere?
I thought the Eco light indicated that the engine was switching between 3, 4, or 6 cylinders
That's not really correct, but maybe the best way to explain it (to a customer).

It is the computer that determines when to go into VCM mode. The process is seamless between 6-4-3, and one never really knows. Meaning you can feel (hear) it, but can say when or which mode, like a light switch.

Are you in eco mode running on 4 or 3 cylinders? Yes 99.9%.

Can you be in eco mode while running 6 cylinders? Yes. One can run all cylinders efficiently.

One guy on the Odyssey forum hook up a light to the actual VCM control, not the eco light, and was surprise how they don't always match. I'll try to find the link again.
 

·
Low Gear
Joined
·
2,935 Posts
Here it is. I don't know if there is a policy here against posting tech info from another forum. But here goes.

Originally posted by L&S Van
I have been curious as to when the engine is in 3-cylinder mode. I was able to hook up an LED that lights when VCM shuts down the aft bank of cylinders. Under the intake manifold cover, there is a two-pin connector for the VTEC solenoid valve. The GRN/YEL wire in the connector controls the solenoid valve which activates the "cylinder pause" mode with a 12-v signal. I backprobed that connector and ran a wire to an LED temporarily mounted to the side of the dashboard.

From a brief test drive, 3-cyl mode activates within about 30 sec after the ECO light comes on. Usually, if you're in 3-cyl mode, the ECO light is also on. However, there were a couple of slow speed situations when I was in 3-cyl mode without the ECO light (30-35 mph). The engine switches back to 6-cyl mode as you come to a stop and the revs drop to 1000rpm. The ECO light stays on until you slow below about 10mph.

As for highway performance, the sweet spot for 3-cyl mode was about 65-70mph, depending on the road incline and winds. I was able to keep the ECO light on up to about 75mph, but I couldn't get 3-cyl mode above 70 mph (on level to slight uphill grade). Having a tailwind or downhill grade would probably increase that speed.


If you want to read all 5 pages.
http://www.odyclub.com/forums/showt...184&perpage=15&highlight=vcm+led&pagenumber=1
 
1 - 12 of 12 Posts
Top