SR MAF Re-Grounding - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Danger_Dorn · 08-09-2013, 08:26 PM

Hey again. I couldn't find a descriptive nor pic heavy thread. If I wanted to reground my redtop MAF would I literally just cut the middle (ground) wire and ground it up to the chassis like any other one? Thanks.

cotbu · 08-10-2013, 09:18 AM

If you remove the ground for the mafs, the ecu should throw a code. The ecu has a separate ground pin for the mafs, a reference. If you were to ground the mafs to the chassis or common ground the mafs will still function but you'll get a code from a working ecu.

So why do you want to ground the mafs to the chassis?
If you have a bad pin in the ecu, it can most likely be repaired.
So I'm not telling don't do it, it's your car? But i would look for an alternative or find out why i needed to reground the mafs.

KiLLeR2001 · 08-10-2013, 09:27 AM

If I'm not mistaken the middle wire is the SIGNAL wire to ECU, not a ground. This is a shielded wire.

Danger_Dorn · 08-10-2013, 11:11 AM

Idk I was just reading on what some people do for mpg and performance and from what I understand this give a noticeable difference. I have seen it many places but I think Ill just say screw it lol. Why take a chance at screwing it up

ThatKidWithTheOnevia · 08-10-2013, 01:50 PM

If it doesn't work you can just solder it back hah

08-09-2013, 08:26 PM	#1
Danger_Dorn Zilvia Member Join Date: Oct 2012 Location: Jacksonville NC Age: 33 Posts: 265 Trader Rating: (0) Feedback Score: 0 reviews	SR MAF Re-Grounding Hey again. I couldn't find a descriptive nor pic heavy thread. If I wanted to reground my redtop MAF would I literally just cut the middle (ground) wire and ground it up to the chassis like any other one? Thanks.

08-10-2013, 09:18 AM	#2
cotbu Post Whore! Join Date: Sep 2005 Location: SWFL Age: 50 Posts: 3,318 Trader Rating: (3) Feedback Score: 3 reviews	If you remove the ground for the mafs, the ecu should throw a code. The ecu has a separate ground pin for the mafs, a reference. If you were to ground the mafs to the chassis or common ground the mafs will still function but you'll get a code from a working ecu. So why do you want to ground the mafs to the chassis? If you have a bad pin in the ecu, it can most likely be repaired. So I'm not telling don't do it, it's your car? But i would look for an alternative or find out why i needed to reground the mafs. __________________ LoverTechnologies "Half Broken Things!"

08-10-2013, 09:27 AM	#3
KiLLeR2001 Post Whore! Join Date: Jun 2007 Location: オーランドフロリダ Posts: 7,955 Trader Rating: (46) Feedback Score: 46 reviews	If I'm not mistaken the middle wire is the SIGNAL wire to ECU, not a ground. This is a shielded wire. __________________

08-10-2013, 11:11 AM	#4
Danger_Dorn Zilvia Member Join Date: Oct 2012 Location: Jacksonville NC Age: 33 Posts: 265 Trader Rating: (0) Feedback Score: 0 reviews	Idk I was just reading on what some people do for mpg and performance and from what I understand this give a noticeable difference. I have seen it many places but I think Ill just say screw it lol. Why take a chance at screwing it up

08-10-2013, 01:50 PM	#5
ThatKidWithTheOnevia Join Date: Aug 2013 Location: Las Vegas Age: 31 Posts: 24 Trader Rating: (0) Feedback Score: 0 reviews	If it doesn't work you can just solder it back hah