lean mixture at small throttle changes - D-series.org

Go Back   D-series.org Motor Mayhem & Suspension Satisfaction Engine Management

D-Series.org is the premier Honda All Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
Old 10-05-2016, 01:44 AM   #1 (permalink)
D-Series cadet
 
RACEPAK's Avatar
 
iTrader: (0)
Join Date: Mar 2005
Posts: 323
Rep Power: 15 RACEPAK will become famous soon enoughRACEPAK will become famous soon enoughRACEPAK will become famous soon enough
iTrader Score: 0 reviews
Default lean mixture at small throttle changes

hello everyone,
i have a issue with a lean mixture 15.5-16.5 afr (with no bog) at cruise light throttle opening, (not related to the tip in function).
WOT tip-in from a closed throttle AND anything i do with the throttle above +-900mbar is fine and i have no lean condition,

but any small throttle change get me a lean spot for a second, and then goes back the the afrs i tuned,
for example:
if i cruise at 3000rpm 480-530mbar at steady 13% throttle i get normal afrs
, but if i increase the throttle to 20% and stay at 20% and stay in the same cell that i reached to at 20% throttle,(no matter if slow or fast throttle response) afrs go lean for a second and then goes back to what i tuned in that cell, (all the cells between thous two cells also got a got a good afr at steady throttle,)

the wideband readings in the logs are alittle off, actual gauge shows richer when rich and leaner when lean, about 0.5 afr on both sides,

setup is:
neptune
D16Z6 CP pistons, ramhorn manifold, 5858bb.
simens 830cc injectors, saturated
70mm throttle, edelbrock intake manifold,
-external fpr. base pressure of 43 psi
-iat corrections are all zeroed in the low mid and high load,
-no exhaust or vac leaks
-ecu with new caps (also tried a different ecu)
-all new cap rotor and oem coil

folder:
https://www.dropbox.com/sh/ddi5udlg4...wi5xW4qYa?dl=0

map:
https://www.dropbox.com/s/qvllrddbnvz46yb/bkr8.ncl?dl=0

datalog 1
https://www.dropbox.com/s/4mq2o4qzly73aax/1.dlg?dl=0
datalog2
https://www.dropbox.com/s/62sk6t6khqeoqxt/3.dlg?dl=0

THANKS ALOT

RACEPAK


Posts: 45
Joined: 19 Mar 2014
Send private message View user's profile Send e-mail
RACEPAK is offline   Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old 10-05-2016, 06:01 AM   #2 (permalink)
D-series G0D
 
xile6's Avatar
 
iTrader: (9)
Join Date: Apr 2007
Location: Tx
Posts: 6,365
Rep Power: 25 xile6 is the fucking MAN!!!!xile6 is the fucking MAN!!!!xile6 is the fucking MAN!!!!xile6 is the fucking MAN!!!!
xile6 is the fucking MAN!!!!xile6 is the fucking MAN!!!!xile6 is the fucking MAN!!!!xile6 is the fucking MAN!!!!xile6 is the fucking MAN!!!!xile6 is the fucking MAN!!!!xile6 is the fucking MAN!!!!xile6 is the fucking MAN!!!!xile6 is the fucking MAN!!!!xile6 is the fucking MAN!!!!xile6 is the fucking MAN!!!!xile6 is the fucking MAN!!!!xile6 is the fucking MAN!!!!xile6 is the fucking MAN!!!!xile6 is the fucking MAN!!!!
iTrader Score: 9 reviews
Default

Post a video.
Sounds kinda normal.
Crusing around 14.7 afr, 18% throttle, press gas a bit to speed up.
Afr goes leaner i.e. 14.7 then 15.6 then down to 13.9

If yours is doing something like that then its normal.
Same thing then your idle then rev it should go lean for a split second then to normal AFR for that cell
__________________
Rep when need.
I also have shopkey if you need diagrams PM me. I am a Wiring Master.

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
. RIP

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
xile6 is offline   Reply With Quote Quick reply to this message
Old 10-05-2016, 06:08 AM   #3 (permalink)
D-series soldier
 
atheworld0's Avatar
 
iTrader: (0)
Join Date: Jul 2012
Location: Joplin Missouri
Posts: 504
Rep Power: 9 atheworld0 is fly like an eagleatheworld0 is fly like an eagleatheworld0 is fly like an eagleatheworld0 is fly like an eagleatheworld0 is fly like an eagleatheworld0 is fly like an eagleatheworld0 is fly like an eagleatheworld0 is fly like an eagleatheworld0 is fly like an eagleatheworld0 is fly like an eagleatheworld0 is fly like an eagle
iTrader Score: 0 reviews
Default

agreed, sounds normal to me. also, Neptune has the ability to have you record what your gauge says. go into preferences and logging and you can adjust it there. what input are you using for your wideband?
atheworld0 is offline   Reply With Quote Quick reply to this message
 
Old 10-05-2016, 02:48 PM   #4 (permalink)
D-Series cadet
 
RACEPAK's Avatar
 
iTrader: (0)
Join Date: Mar 2005
Posts: 323
Rep Power: 15 RACEPAK will become famous soon enoughRACEPAK will become famous soon enoughRACEPAK will become famous soon enough
iTrader Score: 0 reviews
Default

thanks for the replys

its more like 15.9-16 when i give it some throttle,

ill post a video tommorow, but in general idea yes, it matches your description xile6.


i'm using d14 for wideband input, but i dont have a problam with the input, the car actualy goes lean,


thanks
RACEPAK is offline   Reply With Quote Quick reply to this message
Old 10-05-2016, 04:07 PM   #5 (permalink)
D-series soldier
 
atheworld0's Avatar
 
iTrader: (0)
Join Date: Jul 2012
Location: Joplin Missouri
Posts: 504
Rep Power: 9 atheworld0 is fly like an eagleatheworld0 is fly like an eagleatheworld0 is fly like an eagleatheworld0 is fly like an eagleatheworld0 is fly like an eagleatheworld0 is fly like an eagleatheworld0 is fly like an eagleatheworld0 is fly like an eagleatheworld0 is fly like an eagleatheworld0 is fly like an eagleatheworld0 is fly like an eagle
iTrader Score: 0 reviews
Default

I understand that the gauge reads lean, but that's normal. I'm trying to help you with your logging. using d14 it only reads 0-3.8v, it's not a truefully 5v input, so you have to scale your wideband accordingly, that's why it's logging off. easier thing would be to move it to d10 or d12.
atheworld0 is offline   Reply With Quote Quick reply to this message
Old 10-05-2016, 05:07 PM   #6 (permalink)
D-series G0D
 
cervan's Avatar
 
iTrader: (14)
Join Date: Dec 2007
Location: Bakersfield
Posts: 7,611
Rep Power: 25 cervan is the fucking MAN!!!!cervan is the fucking MAN!!!!cervan is the fucking MAN!!!!cervan is the fucking MAN!!!!
cervan is the fucking MAN!!!!cervan is the fucking MAN!!!!cervan is the fucking MAN!!!!cervan is the fucking MAN!!!!cervan is the fucking MAN!!!!cervan is the fucking MAN!!!!cervan is the fucking MAN!!!!cervan is the fucking MAN!!!!cervan is the fucking MAN!!!!cervan is the fucking MAN!!!!cervan is the fucking MAN!!!!cervan is the fucking MAN!!!!cervan is the fucking MAN!!!!cervan is the fucking MAN!!!!
iTrader Score: 14 reviews
Send a message via AIM to cervan Send a message via MSN to cervan
Default

spikes when your increasing throttle means your not injecting enough fuel in the transition from steady state to whatever % throttle your giving it.

I think neptune has a setting or table for fuel enrichment during transition.
__________________
Quote:
when the turbo spins, the bullshit ends
1990 crx - 12.2 @ 119mph Sold
cervan is offline   Reply With Quote Quick reply to this message
Old 10-06-2016, 12:47 PM   #7 (permalink)
All powerful D-series member
 
TheToaster's Avatar
 
iTrader: (7)
Join Date: Nov 2011
Location: Washington
Posts: 3,092
Rep Power: 16 TheToaster is the fucking MAN!!!!TheToaster is the fucking MAN!!!!TheToaster is the fucking MAN!!!!
TheToaster is the fucking MAN!!!!TheToaster is the fucking MAN!!!!TheToaster is the fucking MAN!!!!TheToaster is the fucking MAN!!!!TheToaster is the fucking MAN!!!!TheToaster is the fucking MAN!!!!TheToaster is the fucking MAN!!!!TheToaster is the fucking MAN!!!!
iTrader Score: 7 reviews
Default

Tip in.
TheToaster is offline   Reply With Quote Quick reply to this message
Old 10-07-2016, 06:45 AM   #8 (permalink)
D-series soldier
 
atheworld0's Avatar
 
iTrader: (0)
Join Date: Jul 2012
Location: Joplin Missouri
Posts: 504
Rep Power: 9 atheworld0 is fly like an eagleatheworld0 is fly like an eagleatheworld0 is fly like an eagleatheworld0 is fly like an eagleatheworld0 is fly like an eagleatheworld0 is fly like an eagleatheworld0 is fly like an eagleatheworld0 is fly like an eagleatheworld0 is fly like an eagleatheworld0 is fly like an eagleatheworld0 is fly like an eagle
iTrader Score: 0 reviews
Default

there is no reason to adjust it. I'd be ready careful adjusting the tip in as you can get it way out of wack really fast. 16.0 for a breif second at low load won't hurt anything. in fact, I cruise around that mark, sometimes a little leaner with 0 issues.
atheworld0 is offline   Reply With Quote Quick reply to this message
Old 10-07-2016, 05:45 PM   #9 (permalink)
All powerful D-series member
 
TheToaster's Avatar
 
iTrader: (7)
Join Date: Nov 2011
Location: Washington
Posts: 3,092
Rep Power: 16 TheToaster is the fucking MAN!!!!TheToaster is the fucking MAN!!!!TheToaster is the fucking MAN!!!!
TheToaster is the fucking MAN!!!!TheToaster is the fucking MAN!!!!TheToaster is the fucking MAN!!!!TheToaster is the fucking MAN!!!!TheToaster is the fucking MAN!!!!TheToaster is the fucking MAN!!!!TheToaster is the fucking MAN!!!!TheToaster is the fucking MAN!!!!
iTrader Score: 7 reviews
Default

Quote:
Originally Posted by atheworld0 View Post
there is no reason to adjust it. I'd be ready careful adjusting the tip in as you can get it way out of wack really fast. 16.0 for a breif second at low load won't hurt anything. in fact, I cruise around that mark, sometimes a little leaner with 0 issues.
..Dude what?
TheToaster is offline   Reply With Quote Quick reply to this message
Old 10-09-2016, 05:38 PM   #10 (permalink)
D-Series cadet
 
RACEPAK's Avatar
 
iTrader: (0)
Join Date: Mar 2005
Posts: 323
Rep Power: 15 RACEPAK will become famous soon enoughRACEPAK will become famous soon enoughRACEPAK will become famous soon enough
iTrader Score: 0 reviews
Default

thanks for the replys ,
my issue is not tip in,
tip in works perfectly when jabbing the throttle, i have no problem leaning it out or making it richer,

my problem is at small throttle changes,
RACEPAK is offline   Reply With Quote Quick reply to this message
Old 10-16-2016, 05:00 PM   #11 (permalink)
All powerful D-series member
 
TheToaster's Avatar
 
iTrader: (7)
Join Date: Nov 2011
Location: Washington
Posts: 3,092
Rep Power: 16 TheToaster is the fucking MAN!!!!TheToaster is the fucking MAN!!!!TheToaster is the fucking MAN!!!!
TheToaster is the fucking MAN!!!!TheToaster is the fucking MAN!!!!TheToaster is the fucking MAN!!!!TheToaster is the fucking MAN!!!!TheToaster is the fucking MAN!!!!TheToaster is the fucking MAN!!!!TheToaster is the fucking MAN!!!!TheToaster is the fucking MAN!!!!
iTrader Score: 7 reviews
Default

Small throttle changes are tip in related,

Maybe your blind arrogance is why you're having troubles.
TheToaster is offline   Reply With Quote Quick reply to this message
Old 11-01-2016, 02:05 PM   #12 (permalink)
D-Series cadet
 
RACEPAK's Avatar
 
iTrader: (0)
Join Date: Mar 2005
Posts: 323
Rep Power: 15 RACEPAK will become famous soon enoughRACEPAK will become famous soon enoughRACEPAK will become famous soon enough
iTrader Score: 0 reviews
Default

arrogance,where? Maybe if i didn't tested it, but i did and its not the issue, as i see it now,

Last edited by RACEPAK; 11-01-2016 at 02:27 PM.
RACEPAK is offline   Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the D-series.org forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


iconAll times are GMT -8. The time now is 03:02 PM. | Welcome to Forum, please register to access all of our features.