Closed loop target lamba
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Closed loop target lamba
I have a question concerning closed loop target lamba. In the parameter I have changed the target lamba to 15.3. Also edited the target lambda limit, closed loop target lambda low and high in the same range. I am trying to get the ecu to target a afr of 15.3 to see is I can increase the fuel economy a good bit. After making all those changes the ecu is still targeting 14.7. Any ideas?
Re: Closed loop target lamba
post your calibration and the datalogs made using that calibration.
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Re: Closed loop target lamba
Here you go.
- Attachments
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- target lambda.fpdl
- (9.28 KiB) Downloaded 142 times
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- 2008 honda fit.fpcal
- (9.32 KiB) Downloaded 124 times
Re: Closed loop target lamba
I will have our software engineer take a look at this.
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Re: Closed loop target lamba
You see what I am talking about. All the target parameters are set for the ecu to command 15.3 ecu stay at 14.7. Everywhere else its fine.
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Re: Closed loop target lamba
any news on the target lambda?
Re: Closed loop target lamba
Not until we have a vehicle to test on.
Re: Closed loop target lamba
It does not appear that you can target leaner AF ratios beyond 14.7. Only richer ratios to 13.12 can be reached.
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Re: Closed loop target lamba
that is for this application? i heard that some ecus on flashpro will not allow you to run leaner then 14.7. Would adding a external wideband allow you to achieve leaner AFRS in part throttle range using widebank closed loop control?
Re: Closed loop target lamba
No this is not possible. You can only do this in open loop.
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Re: Closed loop target lamba
Not sure what you mean by only in open loop
Re: Closed loop target lamba
You will only be able to run leaner in open loop as it will not try to target a specific AF ratio.
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Re: Closed loop target lamba
so basically wideband closed loop does not work with this ecu?
Re: Closed loop target lamba
IT does work, you just can't force it to run leaner in closed loop.