Conversions & Swaps LSX Engines in Non-LSX Vehicles
Sponsored by:
Sponsored by:

3 wire maf to 5 wire maf conversion diagram?

Thread Tools
 
Search this Thread
 
Old Mar 12, 2007 | 11:33 AM
  #1  
Ratical's Avatar
Thread Starter
8 Second Club
20 Year Member
Photogenic
Liked
Loved
iTrader: (82)
 
Joined: Nov 2004
Posts: 998
Likes: 19
From: Rotterdam, New York
Default 3 wire maf to 5 wire maf conversion diagram?

I am trying to muse an 05 GTO maf with my 98 wiring harness. Does anyone know where I can find a wiring diagram? I tried search, but couldn't find any matches.

Thanks,

Gary
Reply
Old Mar 12, 2007 | 11:04 PM
  #2  
G-Body's Avatar
sawzall wielding director
20 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (4)
 
Joined: Sep 2004
Posts: 3,148
Likes: 12
From: Downers Grove, IL
Default

Well I don`t have a GTO diagram but the truck 5 wire MAF is probably the same.

I don`t have a 98 f-body either but I think the 99 is the same.

The difference between the 5 wire and wire sensors is that the 5 wire combines the MAF and IAT sensors. Hope these help.

EDIT:I just realized the diagrams aren`t labeled clearly, you have to really look, but the first one is for the 5 wire MAF and the second one is for the 3 wire MAF.
Attached Thumbnails 3 wire maf to 5 wire maf conversion diagram?-iac-maf.gif   3 wire maf to 5 wire maf conversion diagram?-engine-sensors.gif  

Last edited by G-Body; Mar 12, 2007 at 11:10 PM. Reason: Label diagrams
Reply
Old Mar 13, 2007 | 10:35 AM
  #3  
Ratical's Avatar
Thread Starter
8 Second Club
20 Year Member
Photogenic
Liked
Loved
iTrader: (82)
 
Joined: Nov 2004
Posts: 998
Likes: 19
From: Rotterdam, New York
Default

Originally Posted by G-Body
Well I don`t have a GTO diagram but the truck 5 wire MAF is probably the same.

I don`t have a 98 f-body either but I think the 99 is the same.

The difference between the 5 wire and wire sensors is that the 5 wire combines the MAF and IAT sensors. Hope these help.

EDIT:I just realized the diagrams aren`t labeled clearly, you have to really look, but the first one is for the 5 wire MAF and the second one is for the 3 wire MAF.
Ok, I figured out the maf portion, but the IAT, I only see one wire labeled in the second diagram. Could you look and see which wire has the 5 volts and which one is ground? I don't know if you can swap them around on the sensor.
Reply
Old Mar 13, 2007 | 12:39 PM
  #4  
G-Body's Avatar
sawzall wielding director
20 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (4)
 
Joined: Sep 2004
Posts: 3,148
Likes: 12
From: Downers Grove, IL
Default

On the second diagram the PPL wire is the ground for the IAT. The TAN has +5V.
Reply
Old Mar 13, 2007 | 04:26 PM
  #5  
Phoenix383's Avatar
Teching In
iTrader: (1)
 
Joined: Jun 2003
Posts: 14
Likes: 0
From: Weatherford, TX DFW
Default

The diagrams don't really show me the order on the plug itself.

The Pigtail I have has all white wires. I know the 3 closest to the MAF Sensor are the 3 I want but don't know the order same with the two furthest away. IE should it be starting at sensor and headed away.

Pink Blk Ylw Tan PPL ? It is the plug end I am trying to figure out since they so nicely placed all white wires in the replacement pig tail.
Reply
Old Mar 13, 2007 | 11:04 PM
  #6  
G-Body's Avatar
sawzall wielding director
20 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (4)
 
Joined: Sep 2004
Posts: 3,148
Likes: 12
From: Downers Grove, IL
Default

. The only thing I could think of would be to check a factory plug on a factory harness. I will check mine when I get a chance, but at the earliest I would be able to post back tomorrow night, possibly not until thursday night.
Reply
Old Mar 14, 2007 | 01:07 AM
  #7  
sierrac3_s2000's Avatar
TECH Apprentice
iTrader: (6)
 
Joined: Jan 2004
Posts: 368
Likes: 2
From: Americus, GA
Default

I have included plug and pin diagrams for the IAT and 3 wire MAF as well as the 5 wire MAF. The first are from an 04 GTO and the 5 wire MAF is from a truck. Hope it helps.
Attached Files
File Type: doc
Mass Air Flow.doc (66.5 KB, 2025 views)
Reply
Old Mar 14, 2007 | 01:44 AM
  #8  
Ferocity02's Avatar
TECH Senior Member
iTrader: (60)
 
Joined: Apr 2003
Posts: 9,397
Likes: 4
Default

Casper makes an adapter that will work for you. Summit carries them.
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

 Pouria Savadkouei
story-1

Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

 Verdad Gallardo
story-2

7 Most Reliable High-Performance Engines GM Has Ever Built

 Verdad Gallardo
story-3

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-4

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-5

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-6

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-7

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-8

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-9

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo




All times are GMT -5. The time now is 12:34 AM.

story-0
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Slideshow: We take a close look at the ONE and Artidiag 800BT2 diagnostic tools from Topdon and the reasons to buy one over the other.

By Pouria Savadkouei | 2026-05-28 11:05:11


VIEW MORE
story-1
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Slideshow: The controversial Ferrari F6 swaps its original flat-12 for a Corvette Z06-derived LT4 V8 and sends power to four rear wheels through a custom-built drivetrain.

By Verdad Gallardo | 2026-05-26 18:23:54


VIEW MORE
story-2
7 Most Reliable High-Performance Engines GM Has Ever Built

Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.

By Verdad Gallardo | 2026-05-21 16:45:27


VIEW MORE
story-3
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-4
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-5
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-6
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-7
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-8
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-9
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE