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

CEL flashed on a few times

  • Thread starter Thread starter The Green GT
  • Start date Start date Nov 1, 2006

The Green GT

No 13 year olds are safe around me.
10 Year Member
Jan 8, 2006
1,269
19
99
Louisiana
Nov 1, 2006
#1
  • Nov 1, 2006
  • #1
I was on my way from school and I noticed my CEL was on. It went off soon after and came back on after a few minutes, then went off again in under a minute. I was accellerating in 5th gear up a slope when it came on so that kight have something to do with it.
Here are the codes I got.

111 PASS
10
172 Heated oxygen sensor indicates lean condition, right side


What needs to be done?

And my codes for the fan relay circuit fault and fuel pump circuit fault are gone since I changed the CCRM.
 

m0l0

Member
Nov 20, 2005
178
0
17
Nov 1, 2006
#2
  • Nov 1, 2006
  • #2
The Green GT said:
I was on my way from school and I noticed my CEL was on. It went off soon after and came back on after a few minutes, then went off again in under a minute. I was accellerating in 5th gear up a slope when it came on so that kight have something to do with it.
Here are the codes I got.

111 PASS
10
172 Heated oxygen sensor indicates lean condition, right side


What needs to be done?

And my codes for the fan relay circuit fault and fuel pump circuit fault are gone since I changed the CCRM.
Click to expand...


I will most likely means that your oxygen sensor is bad, i had the same code but on the left side after i got on a flooding , after that the oxygen sensor was making that code , replaced both and no probs since then, i will highly suggest to replace both at the same time , since you will like to have clean readings to the eec on both banks

Ohh and of couse disconnect battery while you are changing them!
 

The Green GT

No 13 year olds are safe around me.
10 Year Member
Jan 8, 2006
1,269
19
99
Louisiana
Nov 1, 2006
#3
  • Nov 1, 2006
  • #3
Those things are pretty expensive to huh?
 

94-302-vert

Active Member
Aug 16, 2004
1,947
2
36
NE CT
Nov 1, 2006
#4
  • Nov 1, 2006
  • #4
$55-$80 each if I remember correctly...
 

The Green GT

No 13 year olds are safe around me.
10 Year Member
Jan 8, 2006
1,269
19
99
Louisiana
Nov 1, 2006
#5
  • Nov 1, 2006
  • #5
Thats not too bad.
 

mo_dingo

20+ Year Stangneter
Aug 26, 2003
3,031
2
58
Tucson, AZ
Nov 1, 2006
#6
  • Nov 1, 2006
  • #6
How exactly did you get a 10? That doesn't make any sense. There are no zero's in the codes.
 

The Green GT

No 13 year olds are safe around me.
10 Year Member
Jan 8, 2006
1,269
19
99
Louisiana
Nov 1, 2006
#7
  • Nov 1, 2006
  • #7
mo_dingo said:
How exactly did you get a 10? That doesn't make any sense. There are no zero's in the codes.
Click to expand...
The 10 means nothing, just a divider between the codes.
 

mo_dingo

20+ Year Stangneter
Aug 26, 2003
3,031
2
58
Tucson, AZ
Nov 2, 2006
#8
  • Nov 2, 2006
  • #8
Is this on a scantool of some sort? I am just curious.
 

The Green GT

No 13 year olds are safe around me.
10 Year Member
Jan 8, 2006
1,269
19
99
Louisiana
Nov 2, 2006
#9
  • Nov 2, 2006
  • #9
mo_dingo said:
Is this on a scantool of some sort? I am just curious.
Click to expand...
Yea, Im not smart enough to do it with a test light. lol


And how do I know that its the o2 sensor and not an actual lean condition?
 

HISSIN50

"How long does it take to get help in here?
15 Year Member
Nov 29, 1999
31,179
33
129
Nov 2, 2006
#10
  • Nov 2, 2006
  • #10
I'd check the frequency and amplitude of switching on that particular O2 sensor. 5 minutes with a DMM can save 50 bucks.

Good luck.
 

The Green GT

No 13 year olds are safe around me.
10 Year Member
Jan 8, 2006
1,269
19
99
Louisiana
Nov 2, 2006
#11
  • Nov 2, 2006
  • #11
HISSIN50 said:
I'd check the frequency and amplitude of switching on that particular O2 sensor. 5 minutes with a DMM can save 50 bucks.

Good luck.
Click to expand...
And what would need to be done if they are fine?
 

HISSIN50

"How long does it take to get help in here?
15 Year Member
Nov 29, 1999
31,179
33
129
Nov 3, 2006
#12
  • Nov 3, 2006
  • #12
The Green GT said:
And what would need to be done if they are fine?
Click to expand...
Since you're only getting a code for one side, there's a decent chance that it is the O2 itself, or the wiring to the O2.

Oddball questiono you run a narrowband O2 gauge? Some of them don't have high enough internal resistance and can almost freeze the O2 signal.

If you had two O2 codes, I'd think vac leak, MAF issue, etc. But with only one side, it's likely the O2. I can't stand buying new parts without testing first though.

Good luck Eric.
 

The Green GT

No 13 year olds are safe around me.
10 Year Member
Jan 8, 2006
1,269
19
99
Louisiana
Nov 3, 2006
#13
  • Nov 3, 2006
  • #13
Ill test is sunday or so. And I dont have any type of A/F gauge.
 
You must log in or register to reply here.

Similar threads

G
Help! 93 Mustang 2.3L A4LD dies at idle
  • goofyfoot53
  • Nov 17, 2025
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
0
Views
132
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Nov 17, 2025
goofyfoot53
G
T
2002 V6 3.8L Help Me
  • TheIncompetentMechanic
  • Apr 4, 2026
  • 1996 - 2004 SN95 Mustang -General/Talk-
  • 2 3
Replies
50
Views
679
1996 - 2004 SN95 Mustang -General/Talk- May 12, 2026
TheIncompetentMechanic
T
F
2004 Mustang GT – Fuel Pump Not Priming
  • Fayio
  • Apr 22, 2026
  • SN95 4.6L Mustang Tech
Replies
7
Views
180
SN95 4.6L Mustang Tech Apr 27, 2026
n0v8or
N
1999 Mustang GT - No Start- Need help understanding the fuel pump circuit and how it works
  • 99gtGuy
  • Nov 4, 2025
  • 1996 - 2004 SN95 Mustang -General/Talk-
Replies
1
Views
477
1996 - 2004 SN95 Mustang -General/Talk- Nov 7, 2025
04newedge-
0
R
PCM problem
  • Rjchild9
  • Sep 24, 2025
  • 1996 - 2004 SN95 Mustang -General/Talk-
Replies
0
Views
163
1996 - 2004 SN95 Mustang -General/Talk- Sep 24, 2025
Rjchild9
R
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?