Rich for long time after changing gear at WOT
Rich for long time after changing gear at WOT
Hi, K20A2 with PRA ECU and Kpro 4
in the attached log, 0:28 and 3:18
Why injection (ms) has this behaviour, only sometimes
drop after 2 seconds after WOT, or jagged
This cause my afr to stay rich long time, it's normal?
My tuner cannot set fuel in openloop without this strange and delayed corrections, that we don't understand.
0:28
3:18
thank you
in the attached log, 0:28 and 3:18
Why injection (ms) has this behaviour, only sometimes
drop after 2 seconds after WOT, or jagged
This cause my afr to stay rich long time, it's normal?
My tuner cannot set fuel in openloop without this strange and delayed corrections, that we don't understand.
0:28
3:18
thank you
- Attachments
-
- 170514_test_fuel_3_short.kdl
- (6.64 MiB) Downloaded 130 times
-
- 01- AF ratio VTC lean_3.kal
- (149.32 KiB) Downloaded 122 times
Last edited by DonMizzi on Mon Jul 17, 2017 1:56 pm, edited 1 time in total.
Re: Rich for long time after change gear
Hi, somebody can help me?
Just tell me if it's normal or not.
Here other tests, I tried with the wideband on analog 0 (AN0) or in the ELD input.
But I can not get a constant behavior of the A/F Ratio
As you can see from the pictures, during tests, the AFR is ok for the first gear, then, after change gear, it goes rich (sometimes all the gear, sometimes just a few seconds)
It's seems better on ELD, but I should make more tests to have a right statistics.
I know, it can depends on many factors, but what I ask now, is only: It's normal? acceptable?
Or I have to investigate to find the cause?
I attach the two calibrations and logs, one with wideband on AN0 other on ELD.
Analog 0:
ELD:
Just tell me if it's normal or not.
Here other tests, I tried with the wideband on analog 0 (AN0) or in the ELD input.
But I can not get a constant behavior of the A/F Ratio
As you can see from the pictures, during tests, the AFR is ok for the first gear, then, after change gear, it goes rich (sometimes all the gear, sometimes just a few seconds)
It's seems better on ELD, but I should make more tests to have a right statistics.
I know, it can depends on many factors, but what I ask now, is only: It's normal? acceptable?
Or I have to investigate to find the cause?
I attach the two calibrations and logs, one with wideband on AN0 other on ELD.
Analog 0:
ELD:
- Attachments
-
- 01- AF ratio VTC lean_11_ELD.kal
- (148.11 KiB) Downloaded 111 times
-
- 01- AF ratio VTC lean_11_AN0.kal
- (148.09 KiB) Downloaded 114 times
-
- test_fuel_11_ELD_hondata.kdl
- (686.07 KiB) Downloaded 124 times
-
- test_fuel_11_AN0_hondata.kdl
- (1.67 MiB) Downloaded 121 times
Re: Rich for long time after changing gear at WOT
The PRA does not use a wideband. It uses a narrowband sensor which cannot be used for tuning purposes.
Re: Rich for long time after changing gear at WOT
thank you for reply, I haven't seen it
I use openloop in my calibration.
But, I would like to understand,
if you suggest to change Throttle parameters to correct this behaviour,
I would do that if this rich period can compromise performance, in your opinion.
I use openloop in my calibration.
But, I would like to understand,
if you suggest to change Throttle parameters to correct this behaviour,
I would do that if this rich period can compromise performance, in your opinion.
Re: Rich for long time after changing gear at WOT
Can you help me?
Another question, could you explain me Throttle parameters -> Tap-in -> TPS Fuel Moving
How to read "Rate of changes" and "compensation"?
And, what are "TPS Fuel stopped" and "TPS Fuel moving"?
I read documentation, but I don't understand
Thank you
Don
Another question, could you explain me Throttle parameters -> Tap-in -> TPS Fuel Moving
How to read "Rate of changes" and "compensation"?
And, what are "TPS Fuel stopped" and "TPS Fuel moving"?
I read documentation, but I don't understand
Thank you
Don
Last edited by DonMizzi on Fri Sep 01, 2017 4:35 pm, edited 1 time in total.
Re: Rich for long time after changing gear at WOT
Have you read the information in the help file?
http://www.hondata.com/help/kmanager/th ... b=throttle
http://www.hondata.com/help/kmanager/th ... b=throttle
Re: Rich for long time after changing gear at WOT
Yes, I read documentation, but I don't understand.
Documentation not explains what means TPS Fuel stopped and TPS Fuel moving.
Also, I don't undestand if a higher rate of change is related to a faster opening of the throttle, or the reverse.
Thanks
Documentation not explains what means TPS Fuel stopped and TPS Fuel moving.
Also, I don't undestand if a higher rate of change is related to a faster opening of the throttle, or the reverse.
Thanks
Re: Rich for long time after changing gear at WOT
Stopped means that the vehicle is not moving. Moving means that the vehicle is moving.
The higher rate of change means a faster change between opening and closing.
The higher rate of change means a faster change between opening and closing.
Re: Rich for long time after changing gear at WOT
Thank you very much for explanation
Now, the original question: looking at the images above, AFR rich for 2 or more seconds when changing gear, it's normal? or I have to calibrate TPS Tap-In parameters?
What's your opinion?
Now, the original question: looking at the images above, AFR rich for 2 or more seconds when changing gear, it's normal? or I have to calibrate TPS Tap-In parameters?
What's your opinion?
Re: Rich for long time after changing gear at WOT
seems normal as they are reading form different parts of the map due to different RPMs.
Re: Rich for long time after changing gear at WOT
I want to show you the following images with some extra lines, to show you that there is a different AFR to the same RPM.
It happens after the gears change. That is why I have hypothesized problems with the tap-in parameters.
It does not always happen, but often.
Based on the following pictures there is some advice you can give me.
Thank you
It happens after the gears change. That is why I have hypothesized problems with the tap-in parameters.
It does not always happen, but often.
Based on the following pictures there is some advice you can give me.
Thank you
Re: Rich for long time after changing gear at WOT
Screen shots do not tell us the whole picture. It is much easier to review if there is a calibration and datalogs for us to look at.
Re: Rich for long time after changing gear at WOT
In the first and second post there are calibrations e datalogs of some tests