Dod
Displacement on Demand or Active Fuel Management. It's when the v8 shuts off half the cylinders under low load conditions to save MPG
Or you can research some handheld tuners and see if they can shut it off. Or you can get your car dyno/street tuned from a speed shop and request it.
Thanks!! I actually spent 2 minutes and watched the video. Seems like something I can conquer. Now to get my next paycheck.......
Guys I discovered that driving in “3rd” gear the engine stays in the V8 mod. So this raises some questions: does this make sense, is this a good idea to drive in 3rd gear all the time (I’m only doing this in my small town), what can happen to the trany by doing this?
Last edited by CASCO; Sep 15, 2021 at 03:50 PM.
Really?! I drive around town in 3rd because I was always told overdrive is for the freeway only (at least I remember my dad telling me that. He knows a bit about cars so I believed him). But that is how I drive my car because I don't really even take it on the freeway. How can you tell the difference that its really working?
You need to get a feel for what the sensation is like going into 4 cyl mode. Id take it out on a higher speed road like a highway, use overdrive and keep an eye on rpm to watch for / feel for activation once you achieve a steady state speed. May be an exhaust tone change if its quiet enough out/ you can hear any exhaust sound at all.
There's nothing obvious (like a light on the dashboard) or anything - at least there wasnt on my GP. But once you're familiar with the before/ after feel, it's apparent when you're looking out for it.
I do wonder though- is it even worth it to you to deactivate it if you aren't already aware of it / frustrated by it / having issues related to it? Usually the people that are gung ho to get rid of it are those already opposed to it (ie just put on a louder aftermarket exhaust and can't stand the 'Huey coming in for a landing' helicopter chop on the highway).
There's nothing obvious (like a light on the dashboard) or anything - at least there wasnt on my GP. But once you're familiar with the before/ after feel, it's apparent when you're looking out for it.
I do wonder though- is it even worth it to you to deactivate it if you aren't already aware of it / frustrated by it / having issues related to it? Usually the people that are gung ho to get rid of it are those already opposed to it (ie just put on a louder aftermarket exhaust and can't stand the 'Huey coming in for a landing' helicopter chop on the highway).
Nothing bad will happen. The OD gear is just for improving fuel economy by lowering engine rpm at low load / high vehicle speed operation. The car will be fine, especially just driving around town.










