It's pretty simple really. It all comes down to whether you prefer 6 or 3.So is there a verdict?
It's pretty simple really. It all comes down to whether you prefer 6 or 3.So is there a verdict?
I'm also interested in finding out what problems you're referring to. I've read hundreds of posts on here and Piloteers from people using sVCM and I can't recall anyone mentioning it caused a problem.Disabling VCM will cause other problems
What makes you think it will run rich at 165F?With VCM3 since the coolant temp sensor never gets above 167 the ECU thinks the engine is never warmed up fully. And the fuel trims run rich. On a GDI this will cause carbon buildup.
At what temperature did you find that the trim changes? Could you elaborate on what you did to come to the conclusion that the fuel map is different at ECT of 165F versus 200F? You're the first I know that is reporting this.scan tool shows fuel trim change
A 20% drop in fuel economy isn't due to using sVCM. There is something wrong with your truck.Try it for yourself with VCM on and OFF. I lost at least 4 mpg
something wrongnothing wrong
I get 28 MPG to 30 MPG with VCM on.
I lost at least 4 mpg [with VCM off]
Yes, it's strange. Just like most people see a negligble drop in fuel economy (<1 mpg) with all 6 cylinders enabled, whereas you see >4 mpg drop. Or just like most people average 21.5* in their FWD Ridgelines, whereas you average 30 mpg.Strange how some VCM enabled trucks have shakes, vibration and some don't. I cant tell when its on.
I thought the fuel management system only operates in open mode on startup and reverts to closed loop operation when running, where it uses the signal from the O2 sensors rather than ECT sensor to determine fuel/air ratio.The coolant sensor is "tricked" to max out at 165. The ECU thinks the engine is never warmed up keeping a richer mixture.
Yes, plenty of people have no issue with not disabling VCM and letting it run on 3 cylinders when it choses.good explanation. The VCM3 is too complicated to take a chance on a problem. I am leaving mine alone. I don't have any issues
There are millions of miles on the current generation VCM in Ridgelines alone. Add in the other Honda V6s (Accords, Pilots, Passports, Odesseys) that have been using VCM-3 for as long ago as 8 years and you have millions of owners with many millions of miles.Most of them had no trouble on VCM 2 not VCM 3. Not enough miles to see yet
There are millions of miles on the current generation VCM in Ridgelines alone. Add in the other Honda V6s (Accords, Pilots, Passports, Odesseys) that have been using VCM-3 for as long ago as 8 years and you have millions of owners with many millions of miles.
Read what I said. There are millions of V6 owners that have current gen VCM. And these cars will have covered billions of miles. Obviously not every owner has a VCM disabling advice fitted.many millions of miles with VCM disabled? dont think so.
You're in the majority here, so don't worry about thatI’m not going to argue, I’m exhausted. I don’t really care who leaves it on or turns it off. I just wanted to share my real world experience of a very unhappy new owner to a completely satisfied owner. For me, the truck feels like it should have been from the factory. Transmission shifts excellent and downshifts completely fine, with VCM enabled it ruins the downshifts and vibrates the engine for me. Might be a bad motor mount, but 60k on a motor mount isn’t very much and the engine is buttery smooth without VCM, so I’m leaving it.
I don't think anyone on this thread is trying to convince others that they should disable VCM. The OP was only asking if there are any adverse effects of disabling VCM and other than a minor mpg drop (which is logical as running on 6 cylinders will use more fuel) there are none reported.Hee hee, honestly now, if the VCM was really as bad as you are trying to make it out to be, you wouldn't be so exhausted trying to convince the majority of folks who are not experiencing any issues with it at all!![]()
I thought you were sure of it. You were saying earlier that the system will run rich if you use sVCM. You are the only one stating this and it contradicts all others' experience:I wouldn't be sure of that. Its a complex system
And the fuel trims run rich.
MPG dropped greatly with disabled. I believe because of fuel trim
lost at least 4 mpg
The ECU thinks the engine is never warmed up keeping a richer mixture.
I show richer fuel trims in my scangauge
Disabling VCM does make the engine run richer.
Yep, we've heard you. You are sure it's running rich.I am saying you cant be sure that its NOT running rich. It IS running rich.
Yep, for all those have installed sVCM (other than you) that's what you get. Just a smooth-running (actual) V6. All the timeNo codes, No vibration. Great MPG. No problems.
What are you finding so complex?You can see why this is complex.......