5.0L (1979-1995) Mustang Technical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.

KOER KOEO Codes

Thread Tools
 
Search this Thread
 
Old 12-15-2008, 02:34 AM
  #1  
Catchpole
2nd Gear Member
Thread Starter
 
Catchpole's Avatar
 
Join Date: Nov 2008
Location: Washington
Posts: 254
Default KOER KOEO Codes

I finally ran my codes and after looking high and low I think I found a decent code table, but just to make sure can you let me know if I got these right?

Any help or suggetions would be very appreciated

KOEO
29-Insufficient speed sensor input (I believe my speedo cable got broken or melted when my x pipe got put on)
33-Problem with the EGR system (my x pipe's EGR port was sealed, so I just cut and sealed off the EGR until I can figure out what all to do to entirely delete the EGR
41-No Hego switch detected
54-Problem with the air charge temp sensor
91-Shift solendoid failure (nothing seems wrong with my shifting, I don't know what's up with this)


KOER
41-o2 sensor, my x pipe isn't sealed up properly on the flanges
91-Shift solenoid again
33-EGR again
11-?
Catchpole is offline  
Old 12-15-2008, 05:43 AM
  #2  
Joel5.0
5th Gear Member
 
Joel5.0's Avatar
 
Join Date: Jan 2006
Location: Puerto Rico
Posts: 3,926
Default

41 - System Indicates Lean -passenger side(R), No o2 Sensor Switching Detected. always lean -passenger side(M)
91 - o2 Sensor Circuit Indicates Lean -driver side(R), No o2 Sensor Switching Detected. always lean -driver side(M)
54 - Intake Air Temperature/Air Charge Temperature Circuit Open (M,O,R)

For codes 41/91 (system lean) you may want to check this troubleshooting steps and this procedure for 54. LUK
Joel5.0 is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
BOB ROME
5.0L (1979-1995) Mustang
3
07-26-2023 01:54 PM
mrtrodonet
V6 (1994-2004) Mustangs
3
09-19-2020 03:12 PM
lincolnshibuya
V6 (1994-2004) Mustangs
9
12-08-2015 04:37 PM
Dathan
V6 (1994-2004) Mustangs
4
10-05-2015 05:52 AM
ChampInSD
5.0L GT S550 Tech
13
10-02-2015 04:55 AM



Quick Reply: KOER KOEO Codes



All times are GMT -5. The time now is 04:35 AM.