4.6L General Discussion This section is for non-tech specific information pertaining to 4.6L (Modular) Mustangs built from 1996 to 2004.

Air / Fuel problem

Thread Tools
 
Search this Thread
 
Old 02-23-2012, 11:40 AM
  #1  
bopiela
4th Gear Member
Thread Starter
 
bopiela's Avatar
 
Join Date: Sep 2009
Location: Michigan
Posts: 1,830
Default Air / Fuel problem

Hey everyone,

I got all the pipes connected, hoses attached, BOV, MAf, etc. Oh and then added new gas. Went to start it, it fires up but then stalls. The longest it stays on is a couple of seconds. Is this because the air fuel is so far off from a 3.6 non intercooled to a 3.12 intercooled set up? I'm hoping that's the issue and that I didn't do something else in the process...

Thanks for the opinions.
bopiela is offline  
Old 02-23-2012, 09:27 PM
  #2  
bopiela
4th Gear Member
Thread Starter
 
bopiela's Avatar
 
Join Date: Sep 2009
Location: Michigan
Posts: 1,830
Default

No one??? Lol
bopiela is offline  
Old 02-23-2012, 10:20 PM
  #3  
Kerns
4th Gear Member
 
Kerns's Avatar
 
Join Date: Dec 2008
Location: Tulsa, OK
Posts: 1,478
Default

To answer your question no. You're A/F is controlled by the MAF and the onboard computer while in open loop. Did you convert to a blow through setup? If so, did you get a new tune for it? Also, if you can post a picture of your engine bay. I may be able to just look at it and see what is setup wrong about it.

Last edited by Kerns; 02-23-2012 at 10:24 PM.
Kerns is offline  
Old 02-23-2012, 10:48 PM
  #4  
dwtjr3
5th Gear Member
 
dwtjr3's Avatar
 
Join Date: Feb 2010
Location: PA
Posts: 2,758
Default

^ like kerns said, if you switch from draw through to blow through (which im almost positive u did?) Then that is why its not running long, mine did the same thing until my tuner put a base tune on it. The base tune was enough to get a short little first pull on the Dyno done which was enough to start tuning
dwtjr3 is offline  
Old 02-24-2012, 03:32 AM
  #5  
bopiela
4th Gear Member
Thread Starter
 
bopiela's Avatar
 
Join Date: Sep 2009
Location: Michigan
Posts: 1,830
Default

That would be why then. I.did switch to.blow through style.
bopiela is offline  
Old 02-24-2012, 06:47 AM
  #6  
scooter3
4th Gear Member
 
scooter3's Avatar
 
Join Date: Jun 2009
Location: Arizona
Posts: 1,147
Default

You need to get that base tune done....then you should be good.
scooter3 is offline  
Old 02-24-2012, 08:35 AM
  #7  
bopiela
4th Gear Member
Thread Starter
 
bopiela's Avatar
 
Join Date: Sep 2009
Location: Michigan
Posts: 1,830
Default

Thanks guys. That makes me feel better. I didn't realize it would effect everything that much. But that works! We will see when I can get the tune and everything done.
bopiela is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
djbigskrilla
2005-2014 Mustangs
24
09-20-2022 01:04 AM
ShaneB26154
4.6L (1996-2004 Modular) Mustang
35
03-04-2021 04:05 AM
Cin K
New Member Area
4
08-31-2015 07:31 AM
1st 4 eyed fox
General Tech
2
08-24-2015 06:56 PM
fireboss343
General Tech
3
08-21-2015 06:25 AM



Quick Reply: Air / Fuel problem



All times are GMT -5. The time now is 01:33 AM.