# Q45 mafs sensor

**URL:** <https://forums.speedlife.net/t/q45-mafs-sensor/91730>\
**Category:** SON240sx Automotive\
**Created:** [January 8, 2006, 8:18pm UTC](https://forums.speedlife.net/t/q45-mafs-sensor/91730 "2006-01-08T20:18:40Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![just\_ersser](https://avatars.discourse-cdn.com/v4/letter/j/ccd318/32.png) [@just\_ersser](https://forums.speedlife.net/u/just_ersser)\
**Post date:** [January 8, 2006, 8:18pm UTC](https://forums.speedlife.net/t/q45-mafs-sensor/91730/1 "2006-01-08T20:18:40Z")

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hey guys i have a technical question, does a Q45 mafs sensor work with a sr20det ecu, am i able to get a sr ecu programed to use a Q45 mafs?  
im not really sure

any help would be appreciated

thnx  
ersser

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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:** [January 8, 2006, 9:30pm UTC](https://forums.speedlife.net/t/q45-mafs-sensor/91730/2 "2006-01-08T21:30:14Z")

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any safc will take care of it

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**Author:** ![mikesim](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/mikesim/32/5561_2.png) [@mikesim](https://forums.speedlife.net/u/mikesim)\
**Post date:** [January 9, 2006, 12:26am UTC](https://forums.speedlife.net/t/q45-mafs-sensor/91730/3 "2006-01-09T00:26:48Z")

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u can use an Apexi unit, or have your ECU flashed for the Q45 unit.

as far as i know though, the Q45 is far more sensitive because of it’s large size and is hard to tune idle. u may have trouble with an S-AFC since it’s very basic. i’d go with an ECU tune.

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**Author:** ![Happy240sx](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/happy240sx/32/5515_2.png) [@Happy240sx](https://forums.speedlife.net/u/Happy240sx)\
**Post date:** [January 9, 2006, 6:20am UTC](https://forums.speedlife.net/t/q45-mafs-sensor/91730/4 "2006-01-09T06:20:21Z")

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Also, some reputable tuning companies (Enthalpy) won’t even tune an ECU with a Q45 so be sure you understand completely the route you are going to go if this is the MAF for you.

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**Author:** ![just\_ersser](https://avatars.discourse-cdn.com/v4/letter/j/ccd318/32.png) [@just\_ersser](https://forums.speedlife.net/u/just_ersser)\
**Post date:** [January 11, 2006, 7:53pm UTC](https://forums.speedlife.net/t/q45-mafs-sensor/91730/5 "2006-01-11T19:53:06Z")

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thanx that s what i needed to know