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Throttle control question
http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?f=88&t=80872		 Page 1 of 1
Author:  Gageraid [ Sat Dec 13, 2014 12:00 pm ]
Post subject:  Throttle control question
Does anyone know the specifics with fuel cut on our Liberty when decelerating?
I'm wondering if it's easier to trigger it by aggressively letting off the throttle completely, or by lightly letting off the throttle completely.
Author:  NAMoulton1 [ Sat Dec 13, 2014 12:26 pm ]
Post subject:  Re: Throttle control question
I just let go and coast in neutral haha.
Author:  Gageraid [ Sat Dec 13, 2014 12:29 pm ]
Post subject:  Re: Throttle control question
I've tried coasting in neutral, but it doesn't act any different than in gear from what I see. I don't believe fuel cut can be engaged in neutral.
Also, not a fan of the feeling of going from neutral to drive.
Maybe someone has something different in there manual that has one of the "newer" Liberties that has "eco" mode. Anyone?
Author:  lfhoward [ Sat Dec 13, 2014 6:07 pm ]
Post subject:  Re: Throttle control question
When coasting my Scangauge sometimes reads 9999 mpg, but I'd be willing to bet the engine isn't completely cutting off the fuel. At least the 2008 version isn't. I think the later version with the ECO mode might.
Author:  Gageraid [ Sun Dec 14, 2014 2:37 am ]
Post subject:  Re: Throttle control question
lfhoward wrote:
When coasting my Scangauge sometimes reads 9999 mpg, but I'd be willing to bet the engine isn't completely cutting off the fuel. At least the 2008 version isn't. I think the later version with the ECO mode might.

Yes, I've seen my ScanGauge doing that before. You can set fuel cut to different numbers in the options mode that may help with that.
I still can't get an answer I believe about pre "eco" Liberties. I think we have it, but I'm 97 percent sure, not 100.
Also, I'm driving, "blind" right now which in layman's terms is driving without my ScanGauge hooked up, :shock: I have my Progressive SnapShot in the OBD2 port right now so I can't see what's going on right now with my questions.
I'm also curious what's the most economical way to accelerate back up to speed when coming out of DFCO.
Author:  tjkj2002 [ Sun Dec 14, 2014 3:33 pm ]
Post subject:  Re: Throttle control question
NAMoulton1 wrote:
I just let go and coast in neutral haha.

Does not work if your in "N",only in gear.
Author:  Bmxer524 [ Sun Dec 14, 2014 4:25 pm ]
Post subject:  Re: Throttle control question
tjkj2002 wrote:
NAMoulton1 wrote:
I just let go and coast in neutral haha.

Does not work if your in "N",only in gear.


I was gonna say, N won't really do anything. Atleast in gear the engine will spin because the Jeep is moving.

That said, I'll go through my manual and see what I can find out about the ECO mode. I probably won't have time to do that until tomorrow night though. I'm leaving for work in a few minutes, then have a 2-3 page paper that's due at midnight(I haven't started yet :banghead: ) and a final tomorrow morning(still have to study for that too :banghead: ).
Author:  lfhoward [ Sun Dec 14, 2014 4:28 pm ]
Post subject:  Re: Throttle control question
Gageraid wrote:
I'm driving, "blind" right now which in layman's terms is driving without my ScanGauge hooked up, :shock: I have my Progressive SnapShot in the OBD2 port right now so I can't see what's going on right now with my questions.

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Image
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Gageraid wrote:
I'm also curious what's the most economical way to accelerate back up to speed when coming out of DFCO.

What's DFCO?
Author:  Scar0 [ Mon Dec 15, 2014 12:31 am ]
Post subject:  Re: Throttle control question
DFCO
Decelerate
Fuel
Cut
Off

AKA Interactive Decel Fuel Shut Off (iDFSO)
Author:  Gageraid [ Tue Dec 16, 2014 9:42 pm ]
Post subject:  Re: Throttle control question
Scar0 wrote:
DFCO
Decelerate
Fuel
Cut
Off

AKA Interactive Decel Fuel Shut Off (iDFSO)


Beat me to it.
That's pretty cool, Lauren. I've seen people use those with 2 Scangauges. :twisted:
Author:  Gageraid [ Tue Dec 16, 2014 9:43 pm ]
Post subject:  Re: Throttle control question
Bmxer524 wrote:

That said, I'll go through my manual and see what I can find out about the ECO mode. I probably won't have time to do that until tomorrow night though. I'm leaving for work in a few minutes, then have a 2-3 page paper that's due at midnight(I haven't started yet :banghead: ) and a final tomorrow morning(still have to study for that too :banghead: ).


I'd appreciate it. Wouldn't be surprised if it's nothing new to me, but I'd love to learn more about it.
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