• Mustang Forums
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • 1994 - 1995 Specific Tech

94 5.0 HELPPPP won’t run right

  • Thread starter Thread starter Mcfanny
  • Start date Start date Aug 10, 2020
M

Mcfanny

New Member
Aug 10, 2020
4
0
1
Massachusetts
Aug 10, 2020
#1
  • Aug 10, 2020
  • #1
New here I’ve spent hours on this thread with so much info I’ve absorbed.

I recently purchased a half completed sn95. I put the car back together to the best of my ability.
Below are some new parts that have been installed on the car
New plugs. Wires. And distributor. (Stabbed and running at 10 deg timing with plug out ) new fuel injectors. Bosch 50s with matching pro m maf. New ccrm(car was missing this )

car came with manynew and used parts already installed. One being a throttle body iac and tps. I’ve plugged in every sensor that corresponded with the near by plugs.
New fuel pump. Filter and sock.

spun motor over and car wouldn’t idle. Adjusted timing many times with no improvements.
When switching to any gear the car will die out if I don’t have my foot on the throttle.

the current state the car is now in is it will not start without throttle. It will not rev over 2000rpm and there is a large amount of fuel in the oil.

looking for some advice on where I should start.

thanks, matt
 

96pushrod

I think they're a little easier to get off
5 Year Member
May 15, 2018
1,530
871
133
Savannah
Aug 10, 2020
#2
  • Aug 10, 2020
  • #2
What’s your fuel pressure at? What’s all done to the engine? A modified engine with the t4m0 eec is usually going to run like garbage if heavily modded.
 
M

Mcfanny

New Member
Aug 10, 2020
4
0
1
Massachusetts
Aug 10, 2020
#3
  • Aug 10, 2020
  • #3
So I had to manufacture my own fuel lines from fender well to rails. I don’t have a port to access fuel pressure any longer. Engine is stock lower end. Ported e7s to a Holley systemmax upper and lower. Stock cam. I have a full on3 system to install. Hence the fuel injectors and bigger pump. 340lph pump.
So short and sweet mainly stock.
 

96pushrod

I think they're a little easier to get off
5 Year Member
May 15, 2018
1,530
871
133
Savannah
Aug 10, 2020
#4
  • Aug 10, 2020
  • #4
Do you not have the schrader valve at the rail? You can check pressure on that with a gauge.
 
M

Mcfanny

New Member
Aug 10, 2020
4
0
1
Massachusetts
Aug 10, 2020
#5
  • Aug 10, 2020
  • #5
As soon as I get home I will take another look at the rail
 
M

Mcfanny

New Member
Aug 10, 2020
4
0
1
Massachusetts
Aug 10, 2020
#6
  • Aug 10, 2020
  • #6
More info for what it’s worth. Codes when cars off.
122, 327, 113, 157 and 556.
 
You must log in or register to reply here.

Similar threads

T
Help with a 95 5L crank no start
  • TheBubbaJoe
  • Nov 4, 2025
  • 1994 - 1995 Specific Tech
Replies
3
Views
446
1994 - 1995 Specific Tech Nov 5, 2025
AeroCoupe
A
1987 5.0 speed density Foxbody crank no start
  • Alan2204
  • May 23, 2026
  • Fox 5.0 Mustang Tech
Replies
10
Views
274
Fox 5.0 Mustang Tech May 30, 2026
Mcmahst
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
781
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Jun 20, 2026
spilly
S
R
94’ SN95 - Intermittent lope & bogging at moderate rpm
  • Red5.0ho
  • Nov 2, 2025
  • 1994 - 1995 Specific Tech
Replies
5
Views
454
1994 - 1995 Specific Tech Nov 3, 2025
General karthief
W
Megasquirt base tune for 94 5.0
  • wrx757
  • Mar 6, 2026
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
3
Views
195
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Mar 6, 2026
wrx757
W
Share:
Bluesky Email Share Link
  • Mustang Forums
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • 1994 - 1995 Specific 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?