Notices
1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks

sequential Fuel Injection

Thread Tools
 
Search this Thread
 
Old Apr 18, 2007 | 01:07 AM
  #16  
EPNCSU2006's Avatar
EPNCSU2006
Lead Driver
20 Year Member
Joined: Nov 2002
Posts: 9,554
Likes: 38
From: Concord, NC
Originally Posted by lostin90s
I hate to tell you But the MAF PCM? ECM plug will not fit any non MAF or segential truck . I just put a setup on 93 F150 and the 93 ECM would plug into new harness and 94 PCM vise versa.
I'm not sure what you are getting at, but it seems as though the first and last sentence do a 180 and completely contradict one another.

If it's an EEC-IV, it will plug into any EEC-IV harness, physically, at least, whether it's from a carbureted vehicle from the mid 80's or a sequential EFI mass air system; the plug itself is the same. The pinouts are different, obviously, to match the functions required of that particular engine computer. The plug changed from 60 pins to something over 100 in 96, which is where the biggest difference lies.
 

Last edited by EPNCSU2006; Apr 18, 2007 at 01:10 AM.
Reply
Old Apr 18, 2007 | 05:55 AM
  #17  
F250OBX's Avatar
F250OBX
Thread Starter
|
Senior User
Joined: Jul 2005
Posts: 181
Likes: 0
Originally Posted by Conanski
I hear ya. But just to be clear, you won't suddenly get 17mpg by strapping this kit on a stock motor. It'll take a cam upgrade and free flowing exhaust along with the MAF conversion. All that together builds lots more low rpm torque which allows you to drive around without reving the motor very much. Spooling up the hampsters is what kills gas milage.
Well, free flowing exhaust is no prob. Headers, true 2 1/2 duals with hi flow cats and edelbrock 2in-2out muffler.(stainless front to rear) Now the cam might be another story. I might wait on that until I can afflord a new shortblock or something. I am working on sedating the hampsters a bit.
Does the MAF use the same configuration with the 2 tubes going to the airbox?
 
Reply
Old Apr 18, 2007 | 08:08 AM
  #18  
Conanski's Avatar
Conanski
FTE Legend
15 Year Member
Photogenic
Photoriffic
Community Builder
Joined: Jun 2006
Posts: 31,927
Likes: 1,494
From: Ottawa, Ontario
Originally Posted by F250OBX
Well, free flowing exhaust is no prob. Now the cam might be another story. I might wait on that until I can afflord a new shortblock or something.
Cams are dirt cheap for these motors. The highly recommended Comp Cams 35-255-5 is $163 at Summit. I'm not sure if that comes with lifters but if it doesn't they won't cost much more. The big issue is that you basically have to strip the motor bare to install it, upper and lower intake, water pump, rad, timing set all have to go, so there is a lot of labor and a gasket set needed to complete the job. However.. this is by far the component with the most impact on your journey to get more power and better milage.


Originally Posted by F250OBX
Does the MAF use the same configuration with the 2 tubes going to the airbox?
Yes. The kit comes with a single output airbox cover and a Y pipe. You cut the stock tubes a little shorter and install the MAF sensor between the airbox and Y pipe.
 
Reply
Old Apr 18, 2007 | 05:15 PM
  #19  
Lumpy87's Avatar
Lumpy87
Senior User
Joined: Jun 2004
Posts: 291
Likes: 0
I got the Ford kit because it ran like crap and the kit totally fixed it. Mileage is another story. Some will see an improvement, most won't. My mileage is about the same at 10-12 mpg. Considering I have a lift and bigger tires plus the fact that I drive more aggressively, now that I can, I could argue that my mileage has improved.

There are a few pics in my gallery but probably nothing very helpful.

You may not recoup the cost ($600 for the Ford racing kit) in saved gas but the performance difference was well worth it. I installed it in a day taking my time which for me added value to the kit.
 
Reply
Old Apr 18, 2007 | 06:53 PM
  #20  
lostin90s's Avatar
lostin90s
Postmaster
Joined: Jul 2006
Posts: 3,978
Likes: 0
From: Central PA
Originally Posted by EPNCSU2006
I'm not sure what you are getting at, but it seems as though the first and last sentence do a 180 and completely contradict one another.

If it's an EEC-IV, it will plug into any EEC-IV harness, physically, at least, whether it's from a carbureted vehicle from the mid 80's or a sequential EFI mass air system; the plug itself is the same. The pinouts are different, obviously, to match the functions required of that particular engine computer. The plug changed from 60 pins to something over 100 in 96, which is where the biggest difference lies.
Sorry I need to proof read better . It would not plug/ECM fit 93 to 94 Because of pin layout my bad . I just ment it was easier to use the newer plug since he Would have harnes if went this route. . I'm sorry I said any thing.
 
Reply
Old Apr 18, 2007 | 07:38 PM
  #21  
lostin90s's Avatar
lostin90s
Postmaster
Joined: Jul 2006
Posts: 3,978
Likes: 0
From: Central PA
Originally Posted by EPNCSU2006
I'm not sure what you are getting at, but it seems as though the first and last sentence do a 180 and completely contradict one another.

If it's an EEC-IV, it will plug into any EEC-IV harness, physically, at least, whether it's from a carbureted vehicle from the mid 80's or a sequential EFI mass air system; the plug itself is the same. The pinouts are different, obviously, to match the functions required of that particular engine computer. The plug changed from 60 pins to something over 100 in 96, which is where the biggest difference lies.
Sorry I need to proof read better . It would not plug/ECM fit 93 to 94 Because of pin layout my bad . I just ment it was easier to use the newer plug since he Would have harnes if went this route. . I'm sorry I said any thing.
 
Reply
Old Apr 18, 2007 | 10:38 PM
  #22  
F250OBX's Avatar
F250OBX
Thread Starter
|
Senior User
Joined: Jul 2005
Posts: 181
Likes: 0
Originally Posted by lostin90s
Sorry I need to proof read better . It would not plug/ECM fit 93 to 94 Because of pin layout my bad . I just ment it was easier to use the newer plug since he Would have harnes if went this route. . I'm sorry I said any thing.
So,

Now I am more confusededed. Start over. I need what year plug, and what ECM?

Thanx,

Bob
 
Reply
Old Apr 18, 2007 | 10:50 PM
  #23  
EPNCSU2006's Avatar
EPNCSU2006
Lead Driver
20 Year Member
Joined: Nov 2002
Posts: 9,554
Likes: 38
From: Concord, NC
Some 94 and 95 F-series trucks had mass air, some did not. If you can find one of them, the wiring will swap from that 94 or 95 into your 93 with pretty minimal effort, apparently. I cannot confirm because I have not personally done that swap. It is possible to use your existing harness and just add/move the wires needed by the mass air computer as well, but that is a little more difficult. In 96, the F150's were all mass air and all should be OBD-II, which is a completely different system altogether. The wiring may swap, but it's more complex and a bigger hassle to deal with, so generally that year is not considered for a mass air swap. These OBD-II trucks used a 104 pin plug, while the older EEC-IV trucks used a 60 pin plug. Any EEC-IV computer will physically connect to any EEC-IV harness, but if the pinouts do not match, the computer won't work correctly and could get messed up. This is the reason you would need to use the mass air truck harness with the mass air computer. It's not that the computer won't fit, it's just that the wiring does not match the computer and its associated functions. The confusion may be partly from me, and for that I apologize.
 
Reply
Old Apr 18, 2007 | 10:56 PM
  #24  
F250OBX's Avatar
F250OBX
Thread Starter
|
Senior User
Joined: Jul 2005
Posts: 181
Likes: 0
Originally Posted by EPNCSU2006
Some 94 and 95 F-series trucks had mass air, some did not. Etc.
Thanks,

That's a lot more like it.
My bud's '96 F250 5.8 didn't have OBDII............they looked for it at the emission station, and he didn't have one. I wonder if they were MAF or MAP.........hmmmmm........the plot thickens.

Bob
 
Reply
Old Apr 19, 2007 | 12:40 AM
  #25  
EPNCSU2006's Avatar
EPNCSU2006
Lead Driver
20 Year Member
Joined: Nov 2002
Posts: 9,554
Likes: 38
From: Concord, NC
The F250's were a different story. The over 8800 GVWR trucks did not have to comply with Federal OBD-II regulations at the same time as the F150's, so those kept the older computers until the new SuperDuty came out in '98 as a '99 model. I've read of one or two of those heavy trucks having mass air, but I think those are even more rare than the mass air 94-95 F150s. They are definitely still OBD-I at any rate.
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
51M1
1967 - 1972 F-100 & Larger F-Series Trucks
55
Apr 9, 2017 04:57 PM
OEWheels-Tech
Brakes, Steering, Suspension, Tires, & Wheels
26
Feb 9, 2017 09:12 AM
old farm truck
General NON-Automotive Conversation
12
Nov 9, 2016 11:39 AM
Donebrokeit
Brakes, Steering, Suspension, Tires, & Wheels
1
Apr 8, 2016 09:51 AM
WilliesSD250
Alaska Chapter
3
Sep 1, 2009 03:04 PM




All times are GMT -5. The time now is 08:19 AM.