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.

codes 41 & 91 just wont go away!

Thread Tools
 
Search this Thread
 
Old 01-20-2012, 11:11 PM
  #21  
jojobanks
2nd Gear Member
 
jojobanks's Avatar
 
Join Date: Oct 2011
Location: AL
Posts: 446
Default

Originally Posted by mattdel
P codes are OBD-II. This car is EEC-IV.

41 (R) System lean
(M) System was lean for 15 seconds or more (no HO2S switching)

91 (R, M) System running lean
Transmission SS 1 circuit/solenoid problem
thanks for the clarification. Lol I knew there was a difference in obd II to obd I, I just had a brain fart for a second there.
jojobanks is offline  
Old 01-21-2012, 02:29 PM
  #22  
Bubba 95SN
4th Gear Member
 
Bubba 95SN's Avatar
 
Join Date: Apr 2009
Location: N.C.
Posts: 1,893
Default

Did you put on fuel pressure gauge? Results? Cylinder balance test results? When using dvom, test resistance between the test leads and subtract from reading.
Bubba 95SN 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: codes 41 & 91 just wont go away!



All times are GMT -5. The time now is 01:54 AM.