open/closed loop.
Nov 12, 2006, 08:33 PM
#31
Also, its important to note that ASSUMING MY SCALING FOR THE LOAD AXIS IS CORRECT, And thats an IF, that you will ever generally see closed loop loads over 120% or so, since the closed loop throttle voltage and load maps will transition to open loop at that point anyway..
BUT, there are several load columns at 750-1200rpm that appear to be leaner as you approach 100% (that would be equal 0 on a boost gage) Therefore if you have cams and poor idle vacuum, you can see pretty clearly why the car may run leaner than you would expect no matter what you do to fix it.
If this is correct, this actually makes alot of sense..
BUT, there are several load columns at 750-1200rpm that appear to be leaner as you approach 100% (that would be equal 0 on a boost gage) Therefore if you have cams and poor idle vacuum, you can see pretty clearly why the car may run leaner than you would expect no matter what you do to fix it.
If this is correct, this actually makes alot of sense..
Last edited by MalibuJack; Nov 12, 2006 at 08:35 PM.
Nov 12, 2006, 08:40 PM
#32
Its funny.. I've been getting a P0300 code thrown occasionally in load/rpm where those lean cells seem to fall into.. The way my blowthrough MAF was scaled, it would place the load at around 120% when I'm rolling from a start, and if I lowered the MAF signal is when it would go away..
Nov 12, 2006, 09:19 PM
#34
The true test is to alter your AFR target to something like 14.0 and see if it hovers there..
Its definitely a 3D table, and when you look at the values, their mostly 80 hex, which is definitely 14.7 in the AFR definition.. There are 19 columns across, and 20 rows, which definitely matches the timing table (I did the same thing)
Only.. someone has to try making a change to be sure..
Its definitely a 3D table, and when you look at the values, their mostly 80 hex, which is definitely 14.7 in the AFR definition.. There are 19 columns across, and 20 rows, which definitely matches the timing table (I did the same thing)
Only.. someone has to try making a change to be sure..
Nov 12, 2006, 09:23 PM
#35
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well, i am gonna call up my friend, Greedmoto, and see if he wants to try it out. his car has been running lean at idle (15.1) for quite a while now. he already has the ZT-2 hooked up, so it will be a quick test.
he also has the misfire code, and his car misfires at idle, so i know its lean.
he also has the misfire code, and his car misfires at idle, so i know its lean.
Nov 12, 2006, 09:34 PM
#37
This map is already defined in ECUFlash.
It is called the Boost Enhancement Enrich/Enlean (Anti-lag) Map.
In the definition the 'swap X-Y' is just checked. Try it out...it's the same map.
I found this out because I found the location in my 05 ROM for this map, which is 36cd, and that is the same location for the anti-lag map. So, I realized that the anti-lag map just had the swap x-y property checked.
So, is this really the closed-loop target map?
Eric
It is called the Boost Enhancement Enrich/Enlean (Anti-lag) Map.
In the definition the 'swap X-Y' is just checked. Try it out...it's the same map.
I found this out because I found the location in my 05 ROM for this map, which is 36cd, and that is the same location for the anti-lag map. So, I realized that the anti-lag map just had the swap x-y property checked.
So, is this really the closed-loop target map?
Eric
Nov 12, 2006, 10:40 PM
#38
I don't know.. Until someone tries it.. According to the earlier poster this was what he claimed..
FWIW 9417008 doesnt define the Boost enhancement maps, therefore I don't know for sure what it would have originally been.. It is a real map in the rom though..
FWIW 9417008 doesnt define the Boost enhancement maps, therefore I don't know for sure what it would have originally been.. It is a real map in the rom though..
Last edited by MalibuJack; Nov 12, 2006 at 10:42 PM.
Nov 12, 2006, 11:08 PM
#39
on a side note, you are right about the swap x-y needing to be checked off..
But it does look like an AFR target map, and not an anti-lag map.. but who knows.. I don't have anything to compare it with unfortunately..
But it does look like an AFR target map, and not an anti-lag map.. but who knows.. I don't have anything to compare it with unfortunately..
Last edited by MalibuJack; Nov 12, 2006 at 11:11 PM.
Nov 12, 2006, 11:11 PM
#40
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Originally Posted by MalibuJack
on a side note, you are right about the swap x-y needing to be checked off..
Nov 12, 2006, 11:12 PM
#41
No, I meant the image I posted, I forgot to check the swap x-y checkbox.. If you did it the same way I did.. Then yeah, you have to tick off the checkbox.. I didn't notice it until a few minutes ago..
Last edited by MalibuJack; Nov 12, 2006 at 11:14 PM.
Nov 12, 2006, 11:22 PM
#43
All I can say is test it out with caution.. If its the closed loop target, you'll know pretty quickly if it works by setting your idle target to 14.0 or something and see if it can hit it (or go richer than it was before..)
If its the Anti-lag map, Its really not used in the USDM cars and probably won't do anything.. but I would put it back if it doesnt work just so you don't risk a problem..
Its clearly a map, it has the right few bytes at the beginning that defines it.. And it doesnt match up to anything else that I've seen in the 9417008 rom definition.
If its the Anti-lag map, Its really not used in the USDM cars and probably won't do anything.. but I would put it back if it doesnt work just so you don't risk a problem..
Its clearly a map, it has the right few bytes at the beginning that defines it.. And it doesnt match up to anything else that I've seen in the 9417008 rom definition.
Nov 13, 2006, 01:06 AM
#44
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damn, i dont have my wideband yet otherwise i would have tested it. If it infact is the closed loop AFR, Then it would be ridiculously awesome cause you would be able to alter every aspect in open and closed loop. If somebody finds out please post it, it would be pretty awesome, if it ends up working and being the closed loop AFR map.
Nov 13, 2006, 02:25 AM
#45
I actually have tested it out on my eclipse ( with evo ecu ) I was getting some knock at partial throttle at 75% load at 3000-4000 rpm I took the 80% load column to all 14.7 and I have no more partial throttle knock. At first I changed all the cells to 14.7 and went for a ride Partial throttle was running very rich to the tune of 10:1 afr. So I changed them all back except the 80% column and It works well no knock and 11.4 afr