I am burning a chip for my new SD ECM I am installing in a week. I am switching from MAF to SD. In the AUJP bin the injector flow rate is 22.1 #/HR but in my stock MAF chip and in the ARAP MAF chip the injector flow rate is 22.4 #/HR. Should I leave it set to 22.1 in the AUJP bin or should I set it to 22.4?

 

In all honesty ... it doesn't matter. Seriously. Fact is - you'll have to change the VE tables anyhow once you get everything working. I say to just keep these two things in mind:

1) Know why you want to change something before you change it. The AUJP is a good base to start off with so go with those values unless you have a reason to change something.
2) You are going to have to make fueling changes anyhow in order to dial in the VE curves. The 0.3 variation isn't that big of a deal given that you are going to have to make changes anyhow ... its also not that big of a deal given how fuel pressure changes affect fueling You can unknowingly do much more change with a AFPR than with a 0.3 change in the constant.

Long story short? Stick with stock AUJP values unless you have a reason to change them.

Tim