# SOHC MAFS question

**URL:** <https://forums.speedlife.net/t/sohc-mafs-question/83043>\
**Category:** SON240sx Automotive\
**Created:** [January 15, 2005, 10:15pm UTC](https://forums.speedlife.net/t/sohc-mafs-question/83043 "2005-01-15T22:15:22Z")\
**Posts on this page:** 7\
**Page:** 1

<div class="post-metadata">

**Author:** ![pearlS13](https://avatars.discourse-cdn.com/v4/letter/p/e68b1a/32.png) [@pearlS13](https://forums.speedlife.net/u/pearlS13)\
**Post date:** [January 15, 2005, 10:15pm UTC](https://forums.speedlife.net/t/sohc-mafs-question/83043/1 "2005-01-15T22:15:22Z")

</div>

Hey guys,  
There are 3 wires going to the mafs and i need to know which wire does what. One is ground, one is power and one is the return back to the ecu.  
Can someone tell me which wire does what. Also, i need to know the spec for the amount of voltage the maf should be getting.  
sorry for the basic question but i dont have an fsm.

any help is appreciated,  
Thanks.

---

<div class="post-metadata">

**Author:** ![Sasha\_SG](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/sasha_sg/32/5477_2.png) [@Sasha\_SG](https://forums.speedlife.net/u/Sasha_SG)\
**Post date:** [January 16, 2005, 4:30pm UTC](https://forums.speedlife.net/t/sohc-mafs-question/83043/2 "2005-01-16T16:30:01Z")

</div>

White : Signal  
Black : Ground  
Black w/white stripe: Power

5v power

---

<div class="post-metadata">

**Author:** ![pearlS13](https://avatars.discourse-cdn.com/v4/letter/p/e68b1a/32.png) [@pearlS13](https://forums.speedlife.net/u/pearlS13)\
**Post date:** [January 16, 2005, 4:37pm UTC](https://forums.speedlife.net/t/sohc-mafs-question/83043/3 "2005-01-16T16:37:56Z")

</div>

Thanks Sasha.  
I definetly have a problem somewhere now cuz when i tested the mafs i was getting a reading of 12V.  
WTF is going on!?!?!?!?

---

<div class="post-metadata">

**Author:** ![Sasha\_SG](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/sasha_sg/32/5477_2.png) [@Sasha\_SG](https://forums.speedlife.net/u/Sasha_SG)\
**Post date:** [January 16, 2005, 5:28pm UTC](https://forums.speedlife.net/t/sohc-mafs-question/83043/4 "2005-01-16T17:28:13Z")

</div>

i belive power is 12 but it returns a signal of 0-5v

---

<div class="post-metadata">

**Author:** ![GT1](https://avatars.discourse-cdn.com/v4/letter/g/b5e925/32.png) [@GT1](https://forums.speedlife.net/u/GT1)\
**Post date:** [January 17, 2005, 9:40pm UTC](https://forums.speedlife.net/t/sohc-mafs-question/83043/5 "2005-01-17T21:40:11Z")

</div>

keep it clean in here.

this ones just as important to me as it is him

get teh fukin car running yo!

GT

---

<div class="post-metadata">

**Author:** ![Sasha\_SG](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/sasha_sg/32/5477_2.png) [@Sasha\_SG](https://forums.speedlife.net/u/Sasha_SG)\
**Post date:** [January 17, 2005, 10:21pm UTC](https://forums.speedlife.net/t/sohc-mafs-question/83043/6 "2005-01-17T22:21:07Z")

</div>

> [@GT\_GREG](#):
>
> keep it clean in here.
> 
> this ones just as important to me as it is him
> 
> get teh fukin car running yo!
> 
> GT

sorry gregior, i belive my answer is correct.

---

<div class="post-metadata">

**Author:** ![GT1](https://avatars.discourse-cdn.com/v4/letter/g/b5e925/32.png) [@GT1](https://forums.speedlife.net/u/GT1)\
**Post date:** [January 18, 2005, 6:03am UTC](https://forums.speedlife.net/t/sohc-mafs-question/83043/7 "2005-01-18T06:03:20Z")

</div>

i beleive so to man.

and after closer inspection it looks like it may be an ecu issue he has

GT