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
Sponsored by:
Sponsored by:

Signal timing diagrams?

Thread Tools
 
Search this Thread
 
  #1  
Old 12-16-2018, 10:37 PM
seschenburg's Avatar
seschenburg
seschenburg is offline
Mountain Pass
Thread Starter
Join Date: Jan 2015
Posts: 239
Received 18 Likes on 17 Posts
Signal timing diagrams?

Anyone know where to find signal timing diagrams for the ninth generation (92-97) models? I'm not talking about ignition firing order. I'm looking for the signal timing that the computer and sensors use.
 
  #2  
Old 12-17-2018, 08:44 AM
My4Fordtrucks's Avatar
My4Fordtrucks
My4Fordtrucks is offline
Lead Driver
Join Date: Jun 2015
Posts: 8,819
Received 1,348 Likes on 1,065 Posts
Honestly, I don’t know what you are asking. Are you trying to figure out how the computer knows where cylinder one is for injection and spark?
 
  #3  
Old 12-17-2018, 10:01 AM
subford's Avatar
subford
subford is offline
Fleet Owner
Join Date: Aug 2005
Location: Easton,Ks
Posts: 23,601
Likes: 0
Received 223 Likes on 175 Posts
Maybe this is what you want.
These are for a 1994 and newer OBS truck.
Name:  UrH778H.jpg
Views: 42
Size:  30.9 KB

And for the 1993 and older Trucks:
Name:  1j7bvFu.jpg
Views: 46
Size:  30.4 KB
And the signal from the PSOM for 1992 and newer or from the VSS on the 1991 and older trucks for the E4OD trransmission.
Name:  kCbXMUO.jpg
Views: 123
Size:  48.6 KB

/
 
  #4  
Old 12-17-2018, 04:44 PM
seschenburg's Avatar
seschenburg
seschenburg is offline
Mountain Pass
Thread Starter
Join Date: Jan 2015
Posts: 239
Received 18 Likes on 17 Posts
Thanks for that. It's the right format for what I'm trying to find. But, what I'm really looking for is how the sensor signals relate to the computer control signals as it makes it's decisions. So, as Sensors A, B, and C reach their threshold for action, so to speak, the computer then triggers the transmission to shift up or down or to lock the TC clutch, or whatever.
 
  #5  
Old 12-18-2018, 12:27 PM
NotEnoughTrucks2014's Avatar
NotEnoughTrucks2014
NotEnoughTrucks2014 is online now
Fleet Mechanic
Join Date: Mar 2014
Location: Saskatchewan Canada
Posts: 1,875
Received 98 Likes on 72 Posts
Originally Posted by seschenburg
Thanks for that. It's the right format for what I'm trying to find. But, what I'm really looking for is how the sensor signals relate to the computer control signals as it makes it's decisions. So, as Sensors A, B, and C reach their threshold for action, so to speak, the computer then triggers the transmission to shift up or down or to lock the TC clutch, or whatever.

That sort of info is contained in various lookup tables within the ECU programming. It is considered proprietary by Ford and it pretty difficult to come by. Best bet is to have a look at the Moates site.
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Ccfconnor
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
4
07-06-2017 11:50 AM
parkland
6.4L Power Stroke Diesel
1
12-01-2012 08:40 AM
first_f250
1999 to 2016 Super Duty
3
06-30-2010 12:45 PM
f150plow
Electrical Systems/Wiring
4
12-30-2006 10:19 AM
herby666
2.6, 2.8, 2.9, 4.0 & SOHC 4.0 V6
1
09-03-2006 04:26 PM



Quick Reply: Signal timing diagrams?



All times are GMT -5. The time now is 12:38 AM.