• Community Forums
  • The Welcome Wagon

ECU restoration challenge

  • Thread starter Thread starter SG193
  • Start date Start date Oct 16, 2019
S

SG193

New Member
Oct 16, 2019
5
0
1
Humble, TX
Oct 16, 2019
#1
  • Oct 16, 2019
  • #1
Hello, looking for some advise. I have a 5.0 engine and auto transmission from a 1994 mustang 5.0 doing an engine swap in a 73 F100 but no ECU or vin. How do I replace that ecu? Is there some type of plug and play where I dont need that info to buy?
 
Last edited: Oct 16, 2019

General karthief

wonder how much it would cost to ship you a pair
5 Year Member
Aug 25, 2016
27,868
10,542
203
polk county florida
Oct 16, 2019
#2
  • Oct 16, 2019
  • #2
Ok, this opens up a world of stuff, if it were me I would go with a stand alone type ecu, many members here run some type of megasquirt, ms2pnp what ever it is. I'll refer two of our resident car electronic hackers for their take on this.
that said, you could adapt a fox wiring harness and computer but you will be limited to 90's technology. There is also the Holley or Fi Tech systems that are pretty much plug and play mostly self learning efi systems that bolt to a carb type manifold.
@a91what A91
@stanglx2002
 

a91what

SendMeUrDataLog
10 Year Member
Apr 6, 2011
10,739
6,720
214
Hillsborough county
Oct 16, 2019
#3
  • Oct 16, 2019
  • #3
First let's identify the wiring harness you plan on using, do you have a harness? After that we can decide on what type of control you want. Do you plan to leave the engine stock?

I actually have an entirems2pnp ECU with all the needed extras for sale, even comes with my tuning services.

Before you commit to anything we need to know what your goals are.
 

General karthief

wonder how much it would cost to ship you a pair
5 Year Member
Aug 25, 2016
27,868
10,542
203
polk county florida
Oct 16, 2019
#4
  • Oct 16, 2019
  • #4
DRIVEFASTTAKECHANCES!
 
S

SG193

New Member
Oct 16, 2019
5
0
1
Humble, TX
Oct 16, 2019
#5
  • Oct 16, 2019
  • #5
Thanks for that info. I do have its original wiring to the engine just no ECU. I have the trans wiring and engine harness.For now i just want to be able to have a running vehicle. Instead of spending 3 to 5k in a crate engine I had this motor and trans from another project 60 F100. Hoping I dont regret it. Hoping for cheapest fix
 

a91what

SendMeUrDataLog
10 Year Member
Apr 6, 2011
10,739
6,720
214
Hillsborough county
Oct 16, 2019
#6
  • Oct 16, 2019
  • #6
You will want the stock ECU then, the transmission is ecu controlled
 
S

SG193

New Member
Oct 16, 2019
5
0
1
Humble, TX
Oct 16, 2019
#7
  • Oct 16, 2019
  • #7
All i have is a tag on transmission . Is this enough to get one? All auto stores ask for a VIN
 
S

SG193

New Member
Oct 16, 2019
5
0
1
Humble, TX
Oct 25, 2019
#8
  • Oct 25, 2019
  • #8
Thanks for advise a91what. Sorry for such late response but by stock you mean a replacement from local autoparts since original is not available?
 

a91what

SendMeUrDataLog
10 Year Member
Apr 6, 2011
10,739
6,720
214
Hillsborough county
Oct 25, 2019
#9
  • Oct 25, 2019
  • #9
that is correct
 
Reactions: SG193
S

SG193

New Member
Oct 16, 2019
5
0
1
Humble, TX
Oct 25, 2019
#10
  • Oct 25, 2019
  • #10
One more thing how would I go about ordering it from them without the vin?
 
You must log in or register to reply here.

Similar threads

S
ECU help!
  • starkiller1134
  • Aug 16, 2025
  • SN95 4.6L Mustang Tech
Replies
2
Views
293
SN95 4.6L Mustang Tech Aug 17, 2025
starkiller1134
S
Q
Resolved 96 crown Vic ECU in a mustang gt
  • QuickDibbles
  • Aug 30, 2025
  • SN95 4.6L Mustang Tech
Replies
5
Views
677
SN95 4.6L Mustang Tech Sep 27, 2025
Noobz347
F
Electrical Foxbody wiring harness 2.3 to v8 swap
  • Foxbodyjake
  • Mar 23, 2026
  • Fox 5.0 Mustang Tech
  • 2
Replies
24
Views
637
Fox 5.0 Mustang Tech Apr 13, 2026
Foxbodyjake
F
S
Fox '87 GT can't get to stay running
  • spilly
  • Mar 29, 2026
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • 2
Replies
27
Views
649
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Jun 20, 2026
spilly
S
B
No spark. 1990 foxbody 5.0 gt
  • Boogi
  • Nov 16, 2025
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
0
Views
170
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Nov 16, 2025
Boogi
B
Share:
Bluesky Email Share Link
  • Community Forums
  • The Welcome Wagon
Menu
Log in

Register

  • Forums
  • What's new
  • Media
  • Resources
  • Contact
  • Sponsor
X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?

X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?