AEM Fuel enrichment table problems
05-02-17, 05:42 PM
#1
Racing Mechanic
Thread Starter
Fuel enrichment table problems
Hi
I just wondering if someone can help me with this, Im testing and testing and seems like i can't find the solution of the dilemma.
I it goes to lean when i shift ,and no matter what i change it does not do a big difference
I don't have the secondary vacuum throttle flaps , and a big throttle body. 2250cc sencondary injectors and 850cc (OEM secondary) for primary , it is single turbo of course.
Should be easy to solve , but is taking me one and other head ache, and lots and lots of fuel , without positive result , my aim thou is just to boost her to 1 bar (14,7 psi) but ATM i just boosting 10 psi
I will attach some screen shot , so you can know more or less what I'm talking about
I just wondering if someone can help me with this, Im testing and testing and seems like i can't find the solution of the dilemma.
I it goes to lean when i shift ,and no matter what i change it does not do a big difference
I don't have the secondary vacuum throttle flaps , and a big throttle body. 2250cc sencondary injectors and 850cc (OEM secondary) for primary , it is single turbo of course.
Should be easy to solve , but is taking me one and other head ache, and lots and lots of fuel , without positive result , my aim thou is just to boost her to 1 bar (14,7 psi) but ATM i just boosting 10 psi
I will attach some screen shot , so you can know more or less what I'm talking about
05-07-17, 01:35 AM
#2
Racing Mechanic
Thread Starter
ok , a bit better , for no known reasons it went a bit richer , not that concern yet , but the fuel accel table in between the shifts are way better
05-08-17, 02:09 PM
#3
Racing Mechanic
Thread Starter
Ok , it seems like i found my mistake
First you have the DTPS trigger
Then Accel limit
Access Sustain
And Accel Sensitivity
Here is the tricky part , as you put smaller numbers the DTPS get bigger , so for example , to thirgger it you put a 15 , will be harder to trigger the accel ¨pump¨than a 3
The access limit is pretty much easy , in this case , it will never go more than 141% of the fuel map
Access pump sustain is how long you what to the fuel ¨pumper enrichment work , easy to know when you datalog the wideband o2 sensor in the shifting
and the Accel sensitivity , is how sensible will be the delta throttle position moment to make the fuel pump work (a bit confusing and i don't understand well about this and the difference between this and the dips trigger , but hier number more sensitive to the throttle position so easier to activate it.
First you have the DTPS trigger
Then Accel limit
Access Sustain
And Accel Sensitivity
Here is the tricky part , as you put smaller numbers the DTPS get bigger , so for example , to thirgger it you put a 15 , will be harder to trigger the accel ¨pump¨than a 3
The access limit is pretty much easy , in this case , it will never go more than 141% of the fuel map
Access pump sustain is how long you what to the fuel ¨pumper enrichment work , easy to know when you datalog the wideband o2 sensor in the shifting
and the Accel sensitivity , is how sensible will be the delta throttle position moment to make the fuel pump work (a bit confusing and i don't understand well about this and the difference between this and the dips trigger , but hier number more sensitive to the throttle position so easier to activate it.