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Thread: Soften deceleration fuel cut on low RPMs

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Posts: 1-10 of 44
2013-07-10 20:36:32
#1
Soften deceleration fuel cut on low RPMs
Hey guys, how do I soften or disable deceleration fuel cut on low RPMs? I've swapped for a Q45 TB and deceleration is annoying.

I've seen this 3 tables, Decel CLT factor, Decel Fuel factor and Decel Load factor but I'm not really sure how these values work.
2013-07-10 23:37:38
#2
I've also wondered this!

Lets shoot some big flames on decal J/K

anyways, why do race cars have this? Why aren't they trying to save that fuel. Less pit stops for fuel will help win that race hahaha. Must help keep the temps down.
2013-07-11 20:21:16
#3
Originally Posted by Haulin200sx
I've also wondered this!

Lets shoot some big flames on decal J/K

anyways, why do race cars have this? Why aren't they trying to save that fuel. Less pit stops for fuel will help win that race hahaha. Must help keep the temps down.


I don't have any issues with decel while on high rpm, but it's anoying to have fuel cut everytime I let off the gas becuase it makes the ride around town or while stuck on traffic really jerky.

Any help appreciated.
2013-07-12 14:21:08
#4
The overrun fuel cut tables are on the Idle tab. You control the RPM range at each CLT where overrun fuel cut is activated and deactivated. Just make sure the "On" RPM is greater than the "Transition" RPM, and that is greater than the "Off" RPM.

Dave
2013-07-12 16:11:37
#5
I think what I currently have is on line with what you're describing, I've taken a screenshot,

Last edited by Nicoxis on 2013-07-12 at 16-56-01.
2013-07-12 17:10:57
#6
Yes, The "FC" tables are for overrun fuel cut.
2013-07-12 17:41:58
#7
Originally Posted by OnTheChip
Yes, The "FC" tables are for overrun fuel cut.


This is what I currently have, so how do I modify it to smooth things out?
2013-07-12 20:03:20
#8
Originally Posted by Nicoxis
Originally Posted by OnTheChip
Yes, The "FC" tables are for overrun fuel cut.


This is what I currently have, so how do I modify it to smooth things out?


Originally Posted by OnTheChip
The overrun fuel cut tables are on the Idle tab. You control the RPM range at each CLT where overrun fuel cut is activated and deactivated. Just make sure the "On" RPM is greater than the "Transition" RPM, and that is greater than the "Off" RPM.

Dave


Further detailed information on how the fuel cut tables work is in the documentation for the "Idle" tab.

Dave
2013-07-23 15:45:01
#9
Originally Posted by Nicoxis
Originally Posted by OnTheChip
Yes, The "FC" tables are for overrun fuel cut.


This is what I currently have, so how do I modify it to smooth things out?


Not sure if this will work on not but try using the same rpm from the top to the bottom (use the higher rpm value from the coldest temp) then repeat for all tables. Give it a try. Can't hurt, if it doesnt work just put it back to what was preloaded.
2013-07-23 16:34:13
#10
Originally Posted by Haulin200sx
Originally Posted by Nicoxis
Originally Posted by OnTheChip
Yes, The "FC" tables are for overrun fuel cut.


This is what I currently have, so how do I modify it to smooth things out?


Not sure if this will work on not but try using the same rpm from the top to the bottom (use the higher rpm value from the coldest temp) then repeat for all tables. Give it a try. Can't hurt, if it doesnt work just put it back to what was preloaded.


I thought the same and had already tried that, but the engine kept shutting itself off :/ Thanks for the suggestion though
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