V4
Thread Starter
Safety Car
Joined: Apr 2002
Posts: 4,101
Likes: 3
From: Vandalay Industries
V4
When running in the Econ mode (V4 or cylinder deactivation) is it the same 4 cylinders that are deactivated each time it engages?
Last edited by eboggs_jkvl; May 31, 2021 at 06:49 PM.
Moderator emeritus
Joined: Jun 2001
Posts: 18,599
Likes: 3,951
From: Jacksonville Florida BWO Dayton, Cincinnati, Bloomsbury NJ, Cincinnati
2015 C7 of the Year Finalist
Active Fuel Management (AFM), which shuts down the LT1’s firing cylinders from eight to four by disabling the valves to the cylinders. When AFM initiates, the engine turns the 6.2L V8 into a 3.1L V4, shutting down cylinders 1, 4, 6 and 7, and firing only cylinders 8, 2, 5 and 3 in that order.
Otherwise, the complete firing order is 1, 8, 7, 2, 6, 5, 4, 3.
2, 4, 6, 8, Passenger side from front to rear.
1, 3, 5, 7, Driver's side from front to rear
In the immortal words of post #2, "Yep".
Elmer
Otherwise, the complete firing order is 1, 8, 7, 2, 6, 5, 4, 3.
2, 4, 6, 8, Passenger side from front to rear.
1, 3, 5, 7, Driver's side from front to rear
In the immortal words of post #2, "Yep".
Elmer
Last edited by eboggs_jkvl; May 31, 2021 at 06:50 PM.
Drifting
Joined: Jul 2011
Posts: 1,258
Likes: 99
From: O'Fallon Illinois - Currently own a 2016 Z06 1LZ A8 Coupe
All,
I have a Range device for sale. Newest version - works great. I don't need anymore since I removed V4 mode with HP tune.
Asking $150.00 - Private message me if interested.
Sorry if this isn't the right venue to post.
MT
I have a Range device for sale. Newest version - works great. I don't need anymore since I removed V4 mode with HP tune.
Asking $150.00 - Private message me if interested.
Sorry if this isn't the right venue to post.
MT
Intermediate
Joined: Jan 2013
Posts: 35
Likes: 3
From: Merced, CA
Cylinders 2,3,5,8 deactivated on LT2 engine.
https://static.nhtsa.gov/odi/tsbs/20...72811-9999.pdf
https://static.nhtsa.gov/odi/tsbs/20...72811-9999.pdf
Active Fuel Management (AFM), which shuts down the LT1’s firing cylinders from eight to four by disabling the valves to the cylinders. When AFM initiates, the engine turns the 6.2L V8 into a 3.1L V4, shutting down cylinders 1, 4, 6 and 7, and firing only cylinders 8, 2, 5 and 3 in that order.
Otherwise, the complete firing order is 1, 8, 7, 2, 6, 5, 4, 3.
2, 4, 6, 8, Passenger side from front to rear.
1, 3, 5, 7, Driver's side from front to rear
In the immortal words of post #2, "Yep".
Elmer
Otherwise, the complete firing order is 1, 8, 7, 2, 6, 5, 4, 3.
2, 4, 6, 8, Passenger side from front to rear.
1, 3, 5, 7, Driver's side from front to rear
In the immortal words of post #2, "Yep".
Elmer
