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

Electrical Codes with and without chip

  • Thread starter Thread starter CUAviator
  • Start date Start date Apr 26, 2020
C

CUAviator

Member
Jan 11, 2015
71
1
8
Apr 26, 2020
#1
  • Apr 26, 2020
  • #1
BLUF: when I pull codes without the chip, I get:
81 - Air Diverter solenoid fault, air intake cont circuit fault/air injection diverter

82 - Air Diverter solenoid circuit fault

*84 - EGR vacuum reg circuit fault
* I don’t have an EGR.

With the chip installed, I don’t get those codes, but I do get a 15 (keep alive mem fail)

Also, I just replaced my A9L with an A9P

- what all is the impact of those codes?
- how do you fix them, if need be?
- would it be better to put the chip in, or is it a bad idea with the computer swap?
 
You must log in or register to reply here.

Similar threads

2
Running very very rich
  • 2esoteric
  • Oct 31, 2025
  • Fox 5.0 Mustang Tech
Replies
4
Views
304
Fox 5.0 Mustang Tech Oct 31, 2025
Noobz347
C
Engine Code 94 and 13
  • CmdrDerp
  • Nov 3, 2024
  • Fox 5.0 Mustang Tech
Replies
3
Views
316
Fox 5.0 Mustang Tech Nov 4, 2024
AeroCoupe
Engine Throwing codes 94, 33, 34, 44, and sporadic engine shutoff.
  • Ryu
  • Oct 9, 2024
  • Fox 5.0 Mustang Tech
Replies
11
Views
836
Fox 5.0 Mustang Tech Oct 16, 2024
89ripper
R
93 LX 2.3 Trouble codes 53, 85, 21 help
  • Rickshaw302
  • Apr 15, 2025
  • 2.3L (N/A & Turbo) Tech
Replies
17
Views
517
2.3L (N/A & Turbo) Tech Apr 18, 2025
AeroCoupe
Resolved Three way cat converters..?
  • PonyGTrider
  • Nov 2, 2025
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
7
Views
238
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Nov 2, 2025
PonyGTrider
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?