Closed loop (wideband signal)

s300 and SManager software questions & answers
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carlosu
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Joined: Fri Jun 07, 2013 6:39 am

Closed loop (wideband signal)

Post by carlosu »

Hi, i'm from spain, sorry if i write bad.
The ECU is a p28 of a d16z9 and i'm running a b16a2 with a usdm-p30 map.
In the closed loop option, in the parameters of the smanager, when i select the "closed loop (wideband signal) voltage..." the car runs fine. The problem i have is that after a certain period of time (or engine temperature, i don't know...) it seems like it runs in open loop and at idle i see on the afr gauge 13's 12's...
I don't know why it changes from closed loop to open loop when i selct this option ("wideband signal...") after a time...
The ELD is disabled and when i select the "closed loop narrowband signal" option in closed loop parameters the cars hasn't got this problem, it works fine all the time.

Anybody can help me??

Ciao!!
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Spunkster
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Location: Hondata

Re: Closed loop (wideband signal)

Post by Spunkster »

carlosu
Posts: 10
Joined: Fri Jun 07, 2013 6:39 am

Re: Closed loop (wideband signal)

Post by carlosu »

The hondata is a V2 and on the box i see writed the ref. 23528.
It was bought 1 month ago more or less.

Th car is a 1994 civic e5g with a b16a2 (eg6) engine swap. (plug and play).

The calibration is the same that comes with the stock usdm-p30 map. it isn't modified.
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Spunkster
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Re: Closed loop (wideband signal)

Post by Spunkster »

please post the calibration you are using as well as a datalog showingthe problem.
carlosu
Posts: 10
Joined: Fri Jun 07, 2013 6:39 am

Re: Closed loop (wideband signal)

Post by carlosu »

The problem is very simple.
In the closed loop option, in the parameters of the smanager, when i select "closed loop (wideband signal) voltage..." the car runs fine and works in closed loop perfectly. The problem i have (i don't know if it's a problem) is that after a certain period of time it runs in open loop and at idle i see on the afr gauge 13's 12's...
I don't know why it changes from closed loop to open loop when i select this option --> (closed loop "wideband signal...") after a time... and i don't know if this is normal or if the wideband signal is only for running in open loop.... or....

P.s. If i select the closed loop option, but narrowband signal, i haven't got this problem..

A datalog will give information to solve my question...???
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Spunkster
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Re: Closed loop (wideband signal)

Post by Spunkster »

Yes, it helps us see exactly what is happening and what may be causing it in the calibration.
carlosu
Posts: 10
Joined: Fri Jun 07, 2013 6:39 am

Re: Closed loop (wideband signal)

Post by carlosu »

ok, as soon as i can i'll do a datalog..
thanks
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