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12-06-2021, 12:15 AM | #1 |
Scooby Newbie
Member#: 485056
Join Date: Apr 2018
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Primary Open Loop Fueling Max. Enrichment (Intake Temp)
Hello Nasioc,
I am doing some fuel tuning on my 2004 WRX. The OTS Cobb map tapers fuel all the way down to 10.1 on the top end which is far to rich. My wide band is also reading 10.1-10.3 on WOT. I did some logging and made some healthy initial changes to the Primary Open Loop table, but recently ran across another table: Primary Open Loop Fueling Max. Enrichment (Intake Temp). Could someone explain how this table works? Its about 40 degrees outside by me and my current modified Primary Open Loop table calls for 10.4 peak torque and 10.6 after torque tapers. My wide band is matching these values. The Primary Open Loop Fueling Max. Enrichment (Intake Temp) table has a cell value of 10.14 at 7000 RPM. Does this mean once it gets warmer outside, my AFR will be pegged to 10.14 at redline even though my OL table calls for 10.6? Do you guys recommend changing this table? I appreciate any feedback, thanks!
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12-06-2021, 10:35 AM | #2 |
Scooby Specialist
Member#: 515308
Join Date: Jun 2020
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Calibrate the o2 first
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12-06-2021, 11:27 AM | #3 |
Scooby Specialist
Member#: 385256
Join Date: Mar 2014
Chapter/Region:
NESIC
Vehicle:'18 Giulia QV '21 Giulia Q4 |
where is this table? I couldnt find it RR. In general, if its labeled as aa Maximum then what this probably does is prevent the fueling from exceeding the target specified in the table. For example if fueling was commanded to be 9.5 and this table held a corresponding value of 10.14 then the supplied fueling would be limited to 10.14 and NOT 9.5. again this is just a made up example for what the ecu logic will do.
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12-06-2021, 11:29 PM | #4 | |
Scooby Newbie
Member#: 485056
Join Date: Apr 2018
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This table is for a 2004 USDM Impreza WRX, location is Fuel Tables/Open Loop (Primary)/Primary Open Loop Fueling Max. Enrichment (Intake Temp).
Table description is as follows: This is the maximum enrichment limit for primary open loop fueling (if active) based on intake temperature and RPM. This maximum is applied after all of the primary fueling compensations are applied. Something I left off my last post, that 10.14 @ 7000 RPM is called for at 68 degrees F. Quote:
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12-07-2021, 12:38 AM | #5 | |
Scooby Specialist
Member#: 469585
Join Date: Jun 2017
Chapter/Region:
W. Canada
Vehicle:2009 STi White |
Quote:
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