closed loop vs. open loop
06-20-2005, 12:01 AM
#1
0.0 BAR
Thread Starter
Join Date: Apr 2005
Posts: 21
closed loop vs. open loop
i will be putting in my turbo "kit" within the next few weeks. i was wondering about disabling closed loop operation with uberdata. with closed loop the ecu is trying to reach a 14.7 a/f ratio which is bad when in boost. i also want good gas mileage as well. i was wondering if anyone knew how the turbo dsm deal with this. do their ecus switch to open loop for boost or what. any suggestions are welcomed. i do a lot of highway hill climbs and possible low boost situations. thanks.
06-20-2005, 12:05 AM
#2
3.0 BAR
Join Date: Apr 2003
Posts: 2,260
Re: closed loop vs. open loop
They deal with it just like your Honda would... unless you're a freak on the gas, you shouldn't be part throttle boosting anyway.
..meaning, when you're cruising (around 10inHg) you'll be in closed loop. When you mash the gas, you'll be in open (80%+ TPS).
..Does Uberdata not support disable of closed loop in boost? Hrm.. Rory rocked that feature for TE.
..anyway.. If it doens't have it,a nd you're worried, just tune your maps to whatever you want, and disable closed loop all together.
I don't even run with my oxygen sensor enabled on my car. Get 14.4:1 cruising, 13.5 WOT (all motor).
..meaning, when you're cruising (around 10inHg) you'll be in closed loop. When you mash the gas, you'll be in open (80%+ TPS).
..Does Uberdata not support disable of closed loop in boost? Hrm.. Rory rocked that feature for TE.
..anyway.. If it doens't have it,a nd you're worried, just tune your maps to whatever you want, and disable closed loop all together.
I don't even run with my oxygen sensor enabled on my car. Get 14.4:1 cruising, 13.5 WOT (all motor).
06-20-2005, 03:29 PM
#3
3.0 BAR
Join Date: Mar 2003
Posts: 5,282
Re: closed loop vs. open loop
No, closed loop in boost isn't yet supported. It's been being tested by myself and other's but not yet completed. I just disable closed loop for right now and tune out the map the way it should be. I must be a freak on the gas because I used to be in closed loop while boosting quite a bit until I disabled it 
I hated having to watch the boost/vac guage and concentrate on my throttle position. It makes the whole turbo driving experience no fun 
I hated having to watch the boost/vac guage and concentrate on my throttle position. It makes the whole turbo driving experience no fun
06-21-2005, 08:34 AM
#5
3.0 BAR
Join Date: Jul 2003
Posts: 6,449
Re: closed loop vs. open loop
Originally Posted by julio_bOOstamante
wow now im confused all over again. so closed loop is bad and open is good? or is it the other way around?
06-21-2005, 04:24 PM
#7
1.0 BAR
Join Date: Dec 2002
Posts: 362
Re: closed loop vs. open loop
Originally Posted by bumblezc
I've been o2 disabled in TE for about 3 weeks now and even though I still need some tuning because I'm very rich, the car never ran, idled and boosted smoother!
06-22-2005, 12:15 AM
#8
3.0 BAR
Join Date: Jul 2003
Posts: 6,449
Re: closed loop vs. open loop
Its under Properties-->General Options radio button...
How do you disable the O2 senser in TurboEdit?
Originally Posted by Sikocivic
Originally Posted by bumblezc
I've been o2 disabled in TE for about 3 weeks now and even though I still need some tuning because I'm very rich, the car never ran, idled and boosted smoother!
06-23-2005, 04:11 PM
#9
1.0 BAR
Join Date: Dec 2002
Posts: 362
Re: closed loop vs. open loop
Originally Posted by xenocron
Its under Properties-->General Options radio button...
How do you disable the O2 senser in TurboEdit?
Originally Posted by Sikocivic
Originally Posted by bumblezc
I've been o2 disabled in TE for about 3 weeks now and even though I still need some tuning because I'm very rich, the car never ran, idled and boosted smoother!
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