TwinTurbo.NET: Nissan 300ZX forum - The AFC is a piggy back tool designed to tweak
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Subject The AFC is a piggy back tool designed to tweak
     
Posted by Greg D. (Specialty-Z) on March 26, 2011 at 6:47 PM
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In Reply To apexi safc posted by JoshE300zxTT on March 26, 2011 at 02:01 PM
     
Message The air flow sensor voltage going to the ECU.
The AFC can not compensate for different injectors and is only made for mild tweaking of the air/fuel under load. Your profile says you have a JWT chip for 370cc injectors, and you state you have 550 injectors. Not sure if your profile is up to date, but that will not work.
The AFC can also allow wiring 2 air flow sensors for a dual pop set up.
The ECU program/chip you use should offer a close tune for your set up.
If your tune is way rich, your chip/ tune is either off, or you have other issues.
You should not use the AFC to make any major changes.
I do not recommend tuning with a AFC , many better tuning tools are now available.
The way you should make changes to a tune, should be with the use of a wide band A/F sensor. Guessing or running someone elses changes they used is simply dangerous.

     
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