Notices
ECU Flash

89970010 open loop throttle

Thread Tools
 
Search this Thread
 
Old Aug 13, 2012 | 03:19 PM
  #1  
stamen's Avatar
Thread Starter
Newbie
 
Joined: Jan 2012
Posts: 4
Likes: 0
From: New Zealand
89970010 open loop throttle

I want to change from stock closed-open loop transition to just use the closed loop for idling. my idling tps is around 13-14%.
but i'm lost since the current open load throttle is in voltage. so what multipliers i have to use/ what do i have to edit on the xml?

how the ecu decides on which table to use? (eg. between 'Open Loop Throttle Low Load' and 'Open Loop Throttle High Load')?

and btw; anyone has stock 89970010 rom?

thanks guys

--------------------

here's my xml

<table name="Open Loop Load # 1" category="Fuel" address="381e" type="2D" scaling="Load8">
<table name="RPM" address="5c3e" type="Y Axis" elements="15" scaling="RPM"/></table>

<table name="Open Loop Load # 2" category="Fuel" address="3834" type="2D" scaling="Load8">
<table name="RPM" address="5c3e" type="Y Axis" elements="15" scaling="RPM"/></table>

<table name="Open Loop Throttle Low Load" category="Fuel" address="3850" type="2D" scaling="ThrottleVoltage">
<table name="RPM" address="5c3e" type="Y Axis" elements="15" scaling="RPM"/></table>

<table name="Open Loop Throttle High Load" category="Fuel" address="3866" type="2D" scaling="ThrottleVoltage">
<table name="RPM" address="5c3e" type="Y Axis" elements="15" scaling="RPM"/></table>
Attached Thumbnails 89970010 open loop throttle-screenshot.14a.jpg  
Reply
Old Aug 13, 2012 | 04:09 PM
  #2  
Boosted Tuning's Avatar
Former Sponsor
iTrader: (12)
 
Joined: Jun 2005
Posts: 2,383
Likes: 8
From: Chico, CA (Nor-Cal)
If you wanna run 100% full open loop, then make those 4 tables all zero's.
Reply
Old Aug 13, 2012 | 06:39 PM
  #3  
stamen's Avatar
Thread Starter
Newbie
 
Joined: Jan 2012
Posts: 4
Likes: 0
From: New Zealand
Originally Posted by Boosted Tuning
If you wanna run 100% full open loop, then make those 4 tables all zero's.
thanks. but running closed loop idling seems to be easier for me
Reply
Old Aug 13, 2012 | 08:55 PM
  #4  
07EvoIX's Avatar
Evolving Member
 
Joined: Oct 2010
Posts: 175
Likes: 1
From: Sydney
to convert the TPS from volts to % you need the below scalings

<scaling storagetype="uint16" inc="1" max="100" min="0" format="%.0f" frexpr="x*255/100" toexpr="x/255*100" units="%" name="ThrottlePercentage"/>
<scaling storagetype="uint8" inc="1" max="100" min="0" format="%.0f" frexpr="x*255/100" toexpr="x/255*100" units="%" name="ThrottlePercentage8"/>

use the 'ThrottlePercentage8' for your needs

cheers
Reply
Old Aug 14, 2012 | 01:22 PM
  #5  
stamen's Avatar
Thread Starter
Newbie
 
Joined: Jan 2012
Posts: 4
Likes: 0
From: New Zealand
thanks... it looks right..
Attached Thumbnails 89970010 open loop throttle-screenshot.17.jpg  
Reply




All times are GMT -7. The time now is 03:03 PM.