• Mustang Forums
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • Fox 5.0 Mustang Tech

I'm finally a Mustang owner!!!!

  • Thread starter Thread starter Jester73440
  • Start date Start date Aug 14, 2004

Jester73440

New Member
Jul 14, 2004
45
0
0
Aug 14, 2004
#1
  • Aug 14, 2004
  • #1
Well I picked up a 90 noatch back today i bought it from a friend today. it has 1 minor problem we can't figure out. it runs fine and after a little while it will die out and won't start. sometimes it will fire back up sometime you have to leave it for an hour we believe it is the TPS (any thoughts) The block is a cobra block 302 edlbrock heads, intake i believe it is an E cam. He still has to write out all the specs on it for me. The car was an automatic it now has a T5Z in it the computer is still stock so that can be a problem let me know what everyone thinks i'm not going to fix it till next season just would like to get some ideas I will post all the specs when i get them

thanks
-Steve
 
9

95.0Stang

Member
Feb 20, 2003
538
1
18
Kansas
Aug 14, 2004
#2
  • Aug 14, 2004
  • #2
Soundw to me like the computer, that should be an easy fix though!!!
 

N8Miller

I need NOS....make it 2 of the big ones
Founding Member
Jul 26, 2000
2,661
0
0
Kingston, PA, USA
Aug 14, 2004
#3
  • Aug 14, 2004
  • #3
one of the problems maybe tha the computer if for the automatic stil and hasnt been swapped for a 5 speed one. If you need one, let me know.

anyway, conrats on the car...and a notchback to boast.
 

Jester73440

New Member
Jul 14, 2004
45
0
0
Aug 14, 2004
#4
  • Aug 14, 2004
  • #4
Thanks its acutally the paint sceam of your icon red with white strips I'll post picture tomoarrow. I'll let you know about the computer thanks. I got a good deal on the car too $5500 less then 3k miles on the motor trans rearend suspension brakes. and yes it has a mild drag suspension in it. The guy is one of my best friends i was basically there when every part got put on the car but hes got the 05 itch so had to sell the notch
 
S

scorp69

Founding Member
Feb 5, 2002
605
0
0
California
Aug 15, 2004
#5
  • Aug 15, 2004
  • #5
you can reuse the aod computer in a 5 speed. check your alternator and your cable wires. also any electrical issues.
 

N8Miller

I need NOS....make it 2 of the big ones
Founding Member
Jul 26, 2000
2,661
0
0
Kingston, PA, USA
Aug 15, 2004
#6
  • Aug 15, 2004
  • #6
scorp69 said:
you can reuse the aod computer in a 5 speed. check your alternator and your cable wires. also any electrical issues.
Click to expand...

im not so sure about that. if you could just reuse it, why did ford make 2 diff. computers? the aod one will have shift points and should get all messed up when you work with it.
 
9

90StangLX

Founding Member
Mar 1, 2000
419
0
16
Illinois
Aug 16, 2004
#7
  • Aug 16, 2004
  • #7
The AOD's shifts are not computer-controlled, but by pressure instead. As far as I know it wasn't until the introduction of the AODE that the computer handled shift points.
 

ECU5.0

Banned
Jan 10, 2004
1,803
1
0
raleigh, nc
Aug 16, 2004
#8
  • Aug 16, 2004
  • #8
probably the ignition module...they will do that when they start to go bad
 
B

blk92stangg

New Member
Jan 30, 2004
583
0
0
Hawaii
Aug 16, 2004
#9
  • Aug 16, 2004
  • #9
No problems here with the aod ecu and t5 tranny. If anything, there is some speculation that the aod computer has a slightly more aggressive fuel and timing curve...but who knows, really. Either way, I would guess that having the aod ecu in there is not the source of your problems.
 
M

Matts89LX5.0

Founding Member
Nov 1, 2002
1,314
0
36
Long Island, NY
Aug 16, 2004
#10
  • Aug 16, 2004
  • #10
aod computer can be used in a 5 spd...its no problem...the only thing is if u have anauto and use a 5 spd, it will cause problems but not vice versa
 

HISSIN50

"How long does it take to get help in here?
15 Year Member
Nov 29, 1999
31,179
34
129
Aug 16, 2004
#11
  • Aug 16, 2004
  • #11
Matts89LX5.0 said:
aod computer can be used in a 5 spd...its no problem...the only thing is if u have anauto and use a 5 spd, it will cause problems but not vice versa
Click to expand...
as everyone said, this is right on (this was the easiest to quote).
blk92 is living proof.

when it wont start, ground a plug and see if you are missing spark. then go from there (i would speculate TFI or pick up). you can test the Pick up via the TFI harness, IIRC.

nice pick up and good luck.
 

Jester73440

New Member
Jul 14, 2004
45
0
0
Aug 22, 2004
#12
  • Aug 22, 2004
  • #12
Well is it possible the computer is going bad? Here is something I should have mentioned the check engine light is on and won't go off it came on after the car started shutting off. it is reading out of range on basically all the sensors mass air, o2, tps etc. could this be the computer going out possible when the computer heats up after about an hour of drive it is shutting off. I just don't see every sensor going out at once and since they all go to the computer i was thinking something is wrong with it. let me know if this makes sense
Thanks

I haven't uploaded all the picture yet but here is the engine
 

Attachments

  • engine2.webp
    18.5 KB · Views: 155
1

10HoleLX

Member
Mar 6, 2004
257
0
17
Southern California
Aug 22, 2004
#13
  • Aug 22, 2004
  • #13
Yeah AOD computer is ok in there.
After my t-5 conversion I drove around with it for 4 years and finally swapped it out for a 1993 T-5 computer from a salvage yard for $50.

By the way 1993 computers have mildler fuel/timing curves.

I did notice that the manual computer holds the RPM up and more steady while up shifting.

Also when you check you TFI module, make sure you apply a nice coat of dielectric grease between the module and the distributer mounting plate. The grease serves as a heat shield to keep the module from overheating.
 

grey5.0beast

Cookies should never be DUNKED!!!
Aug 3, 2004
0
1
0
atl ga
Aug 22, 2004
#14
  • Aug 22, 2004
  • #14
do u have a fan

in the engine pic i didnt see a fan housing or do u have an electric fan bc that could be your problem OVERHEATING
 

fox racer

Member
Jun 22, 2004
577
0
16
Staten Island, NYC
Aug 22, 2004
#15
  • Aug 22, 2004
  • #15
you can use an aod cpu on a 5 speed car, but not a 5 speed comp in an aod

Its not the computer
 

Jester73440

New Member
Jul 14, 2004
45
0
0
Aug 22, 2004
#16
  • Aug 22, 2004
  • #16
yeah electric fan.I will check the TFI but, why am I getting codes I will scan it tomarrow and list all the codes i'm getting the only one I know is true is the mass air meter is stock the new one has to be sent back. I understand a aod computer will work in the car but is it possible the computer is taking a ****?

Thanks
-Steve
 

HISSIN50

"How long does it take to get help in here?
15 Year Member
Nov 29, 1999
31,179
34
129
Aug 23, 2004
#17
  • Aug 23, 2004
  • #17
couple things come to mind. do post codes - one device or system amuck can cause lots of codes.

have you messed with the car for some period w/o disconnecting the battery? what im getting at is that there could be old codes stored.

if you suspect the puter, perhaps there is a friend nearby who you can swap the puter with. stick a bag of frozen peas on the puter to keep it cold?

my random thoughts. good luck.
 

Jester73440

New Member
Jul 14, 2004
45
0
0
Aug 23, 2004
#18
  • Aug 23, 2004
  • #18
well the last thing done to the car before this started was the header gaskets being replaced. It was done by the person i bought the car from not myself. I can unhook the battery for a couple days and see if any codes clear
 

BlackFox5.0

Founding Member
Aug 7, 2000
3,514
1
0
Massachusetts
Aug 23, 2004
#19
  • Aug 23, 2004
  • #19
ECU5.0 said:
probably the ignition module...they will do that when they start to go bad
Click to expand...

I second this. I would start with changing the TFI Module.
 

Jester73440

New Member
Jul 14, 2004
45
0
0
Aug 23, 2004
#20
  • Aug 23, 2004
  • #20
are these known to go out? This one is pretty new is there anyway to test it? How much does one cost mine is MSD?
Thanks
 
You must log in or register to reply here.

Similar threads

P
67 Mustang, with the 302 want to convert auto back to the original manual
  • Pdunn
  • May 3, 2026
  • Classic Mustang Specific Tech
Replies
2
Views
134
Classic Mustang Specific Tech May 7, 2026
Mcmahst
S
Fuel ‘88 GT Runs Rich Cold — Fixes Itself When I Unplug Sensors (ECT, MAF, O2, etc.)
  • Sufarry
  • Nov 6, 2025
  • Fox 5.0 Mustang Tech
Replies
12
Views
848
Fox 5.0 Mustang Tech Nov 9, 2025
Mustang5L5
S
Engine Stalls when downshifting/coasting
  • Scott_S
  • Nov 5, 2025
  • Fox 5.0 Mustang Tech
Replies
11
Views
717
Fox 5.0 Mustang Tech Nov 6, 2025
Mustang5L5
Z
Progress Thread zeth194 - New Guy on the Block
  • zeth194
  • Mar 19, 2026
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
10
Views
567
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Apr 26, 2026
LILCBRA
W
Second Time Mustang Owner - 1984 Mustang GT Turbo
  • WAR2D2
  • Mar 28, 2025
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • 2
Replies
36
Views
2K
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Jan 29, 2026
bdub_mkg
B
Share:
Bluesky Email Share Link
  • Mustang Forums
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • Fox 5.0 Mustang Tech
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?