here is my before(left) and after(right) of my maf scaling

 

so would you need to increase the MAF scaling values more to have more fuel under WOT?

does it affect open loop fueling?

 

1. yes you would increase the values to increase fuel.

2. yes and no. if you increase after 500 hz then it will only affect open loop since you will rarely hit more than 500 hz and still be in closed loop. anything below that and its possible it will affect closed loop cruise and idle(but will just be corrected for with LTFT).

you can actually tune your idle and cruise this way if you compare your trims at a certain hz flow

 

alright... now i hope i can get someone to define MAF scaling in my ROM so i can try this out

 

Christmas came early. Check out the master definition list thread. I was able to define the Y-axis values for the definition file you use. Cheers.

 

Thank you senate claus!!! lol

 

Woot! Thanks for the present!

Complink, did you notice if your load values increased after increasing MAF scaling?

 

actually i was just looking at my wideband. i didn't log it cuz my laptop battery sucks and i need a new one

 

haha my laptop sucks PERIOD.

i keep mine connected in the 12v otherwise it'll die in 10 min

the only thing that keeps me from throwing it at the wall is its the only thing i can use to tune my car

 

lol

 

hmm... so i downloaded the new definition files and put them under the rommetdata folder, but i still dont see MAF scaling?

am i missing something here?

 

hey defining the maf scaling y axis... you follow the maf scaling tutorial right? define the y axis to show airflow in hertz and then some other stuff right? I got the tutorial on my other computer...

 

oh ya and logging the airflow hertz... what do you use? Evoscan has airflow i believe but is it accurate?

 

mitsulogger logs airflow in hz.

so what should i do, i opened up ecuflash and i dont see MAF scaling still...

 

Ya if its not showing up then its not defined in your def file...