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

Injector Gurus Halp

  • Thread starter Thread starter darthcual
  • Start date Start date Sep 29, 2011

darthcual

Member
Mar 31, 2005
985
19
18
Arlington, TX
Sep 29, 2011
#1
  • Sep 29, 2011
  • #1
I have a set of orange top labeled python. Can anyone tell me what lb injectors these are? I have a GT40P Head Cobra intake stock cam and at idle it runs rough and backfires. When I put load on the engine it smooths out. The plugs seem fuel soaked so I'm wondering if the injectors are to blame. It does have a FMAS Maf sensor but the part number is long gone. Can anyone help me please?
 

darthcual

Member
Mar 31, 2005
985
19
18
Arlington, TX
Sep 30, 2011
#2
  • Sep 30, 2011
  • #2
Anyone?
 

Maryland Stang

Active Member
Aug 21, 2002
1,656
30
39
Greenville, NC
Oct 1, 2011
#3
  • Oct 1, 2011
  • #3
You need the numbers off of the injectors. When you get them just put them into the search box here: PYTHON Injection, Inc.

As far as your mass air sensor goes, without a part number it is trash. Post a pic and someone may recognize it.

It will be difficult to fix your car until you know what you have or take it somewhere and get a dyno tune done.
 

2000xp8

SN Certified Technician
Aug 8, 2003
8,015
1,613
194
NJ
Oct 1, 2011
#4
  • Oct 1, 2011
  • #4
Put the stock injectors and meter back in.
gt40p combo's don't need more injector.
 

darthcual

Member
Mar 31, 2005
985
19
18
Arlington, TX
Oct 3, 2011
#5
  • Oct 3, 2011
  • #5
I'm working on this as we speak. I have the stock maf but not the injectors. Trying to undo what the previous owner has done is breaking me physically and financially
 
You must log in or register to reply here.

Similar threads

9
Engine Donor '00 Mountaineer meet '91 Fox
  • 91firecracker
  • May 11, 2026
  • Fox 5.0 Mustang Tech
  • 2 3
Replies
41
Views
518
Fox 5.0 Mustang Tech May 28, 2026
91firecracker
9
Engine Misfire below 3K RPM
  • foxbodyclark
  • May 25, 2025
  • Fox 5.0 Mustang Tech
Replies
19
Views
847
Fox 5.0 Mustang Tech May 31, 2025
General karthief
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
712
Fox 5.0 Mustang Tech Nov 9, 2025
Mustang5L5
X
VE Table Not Dialed? Send Me Your Datalog.
  • X-cam34
  • Feb 8, 2026
  • Digital Self-tuning Forum
  • 2 3
Replies
49
Views
1K
Digital Self-tuning Forum May 1, 2026
X-cam34
X
I
Engine Insane fuel trims +25% LTFT Bank 1, -16% LTFT Bank 2
  • imw_stl
  • Aug 31, 2025
  • SN95 4.6L Mustang Tech
Replies
2
Views
260
SN95 4.6L Mustang Tech Sep 19, 2025
Mustang5L5
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?