Notices
C5 Tech Corvette Tech/Performance: LS1 Corvette Technical Info, Internal Engine, External Engine, Tech Topics, Basic Tech, Maintenance, How to Remove & Replace
Sponsored by:
Sponsored by:

Wiring diagram for 5-wire MAF?

 
Old 02-01-2010, 09:25 AM
  #1  
civlant
CF Senior Member
Thread Starter
 
civlant's Avatar
 
Member Since: Feb 2008
Location: Topeka KS
Posts: 410
Thanks: 0
Thanked 0 Times in 0 Posts
Default Wiring diagram for 5-wire MAF?

Anyone have a wiring diagram for the 5-wire MAF? I'm running an open loop speed density tune and I would like to remove my MAF completely but to do that I need to put in a seperate IAT sensor. Not sure which of the 5 wires actually go to the IAT inside my MAF right now. Any help would be much appreciated! Also anyone know where I can get an IAT sensor for cheap?
civlant is offline  
Old 02-01-2010, 11:57 AM
  #2  
clemsondave
CF Senior Member
 
clemsondave's Avatar
 
Member Since: Mar 2006
Location: Richmond VA
Posts: 1,847
Thanks: 0
Thanked 0 Times in 0 Posts
Default

25036751 AC Delco IAT Sensor (threaded - you will need to weld in a bung for this one, which is what I did)
12102620 AC Delco Wire Pigtail

Name:  maf_pinout.jpg
Views: 12544
Size:  42.1 KB
clemsondave is offline  
Old 02-01-2010, 06:21 PM
  #3  
civlant
CF Senior Member
Thread Starter
 
civlant's Avatar
 
Member Since: Feb 2008
Location: Topeka KS
Posts: 410
Thanks: 0
Thanked 0 Times in 0 Posts
Default

Thanks Dave! I'm assuming the new 2-wire connector just uses the IAT signal and ground?

Last edited by civlant; 02-01-2010 at 06:28 PM.
civlant is offline  
Old 02-01-2010, 07:09 PM
  #4  
Y2Kvert4me
CF Senior Member
 
Member Since: Oct 2002
Location: Gone
Posts: 16,477
Thanks: 0
Thanked 6 Times in 6 Posts
CI 6-7-8-9-10 Veteran
St. Jude Donor '03
Default

Purple and tan wires are IAT.

Purple is 5v reference, tan is signal to PCM. It doesn't matter which is which when splicing in the new sensor connector, as the sensor is not polarity sensitive.

Y2Kvert4me is offline  
Old 07-20-2015, 06:20 PM
  #5  
Ksths2
CF Senior Member
 
Ksths2's Avatar
 
Member Since: Jun 2008
Location: Oskaloosa Iowa
Posts: 575
Thanks: 0
Thanked 7 Times in 5 Posts
Default

Bringing an old thread back to life, this is great info. One question, I'm doing this exact thing right now can since I'm only needing the Purple/Tan wires what do I do with the others? Can I just coil them up back at the firewall?
Ksths2 is offline  
Old 12-28-2015, 08:56 PM
  #6  
James Boomer Greene
Junior Member
 
Member Since: Dec 2015
Posts: 1
Thanks: 0
Thanked 0 Times in 0 Posts
Default 5 wire maf

I have a 6.0 ls1 in my 71impala... I got a maf from a 2004 Cadillac Deville that's actually the same as the one I need I cut off the plug with it but it is a 5 wire plug I do know that the pink is for ignition, the two black are for ground and the yellow for the maf to the Pcm but I don't know where the tan wire goes can ANYONE HELP
James Boomer Greene is offline  
 


Thread Tools
Search this Thread
Quick Reply: Wiring diagram for 5-wire MAF?


Sponsored Ads
Vendor Directory

Contact Us - About Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: