3800 got my afc today....

[phat_ridegt]

i read the directions, my car is running rich, so to lean it out a little bit i need to start at 100% and start going backwards correct? so go to 99,98,97, ect until i get to the proper ltft. how much do i change when i start to adjust?


also how would i tune for 42.5's?

EDIT: this is a 2.2

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[EmersonHart13]

What you do is take your scan data, load it in excel and sort by maff. Once you do that take your LTFTs and average them. Take that number and divide by 2. Then adjust the AFC by that number. There are good directions on Club GP somewhere if you search. Or maybe someone who is a good tuner can help you out a little more.

John

 

[nitrous]

Yes, the way you described going lower in percentage is good. Make sure you take your time.

If you want it to be easier to tune for aftermarket injectors, send in the PCM to DHP or unless you know someone with a PT to code in the injectors (with Charles' permission).

 

[Sinister Drag Designs]

Originally posted by phat_ridegt@Dec 29 2005, 12:22 AM
i read the directions, my car is running rich, so to lean it out a little bit i need to start at 100% and start going backwards correct?  so go to 99,98,97, ect until i get to the proper ltft.  how much do i change when i start to adjust?


also how would i tune for 42.5's?

EDIT: this is a 2.2

[snapback]108595[/snapback]​

go slow it takes a while to change and a little go's a long way, i dumped a 1/8 of a tank in 2 minutes from adding to much at idle...raven was laughing his ass off at me