# SAFC Q

**URL:** <https://forums.speedlife.net/t/safc-q/99032>\
**Category:** SON240sx Automotive\
**Created:** [August 17, 2006, 10:25pm UTC](https://forums.speedlife.net/t/safc-q/99032 "2006-08-17T22:25:01Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![krimzen](https://avatars.discourse-cdn.com/v4/letter/k/ecd19e/32.png) [@krimzen](https://forums.speedlife.net/u/krimzen)\
**Post date:** [August 17, 2006, 10:25pm UTC](https://forums.speedlife.net/t/safc-q/99032/1 "2006-08-17T22:25:01Z")

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hey im just curious. I have an SAFC I just to help out additional tuning but when im anything over 40% throttle at about 9lbs its showing 100airflow… which i know isnt happening because its an N32 mafs. which should be at about 50% at that stage. Any ideas?

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**Author:** ![240newbie](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/240newbie/32/5487_2.png) [@240newbie](https://forums.speedlife.net/u/240newbie)\
**Post date:** [August 17, 2006, 11:41pm UTC](https://forums.speedlife.net/t/safc-q/99032/2 "2006-08-17T23:41:22Z")

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Make sure ur in and out sensor settings are correct…

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**Author:** ![KoukiS14](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/koukis14/32/5522_2.png) [@KoukiS14](https://forums.speedlife.net/u/KoukiS14)\
**Post date:** [August 18, 2006, 7:21am UTC](https://forums.speedlife.net/t/safc-q/99032/3 "2006-08-18T07:21:53Z")

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> [@240newbie](#):
>
> Make sure ur in and out sensor settings are correct…

Correct. The SAFC can compensate for a Z32 Maf and look up your proper in and out settings and this will allow you to zero your adjustments.

I wouldnt be too concerned what the airflow % is unless you are running into issues. 40% is alot of fuel being removed I would monitor your knock because its going to throw your ecu fuel tables into a lower chart where timing is usually higher.

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**Author:** ![240newbie](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/240newbie/32/5487_2.png) [@240newbie](https://forums.speedlife.net/u/240newbie)\
**Post date:** [August 18, 2006, 10:20am UTC](https://forums.speedlife.net/t/safc-q/99032/4 "2006-08-18T10:20:24Z")

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SAFC 1 doesnt have a knock sensor.

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**Author:** ![krimzen](https://avatars.discourse-cdn.com/v4/letter/k/ecd19e/32.png) [@krimzen](https://forums.speedlife.net/u/krimzen)\
**Post date:** [August 18, 2006, 2:47pm UTC](https://forums.speedlife.net/t/safc-q/99032/5 "2006-08-18T14:47:17Z")

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correct there is no knock on safc one.  
also my in and out is 2 for 2 and 2in auto add.  
this is because my ecu is tuned for the mafs anyways so anything else but equal in and out would f\*ck it up.  
im just curious as the the voltage range maybe?  
Its not ACTUALLY maxing out i just want it to read it properly