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  • 1996 - 2004 SN95 Mustang -General/Talk-
  • SN95 4.6L Mustang Tech

Can my car be throwing codes without a ses light on

  • Thread starter Thread starter MustangLife
  • Start date Start date Jun 3, 2004
M

MustangLife

Active Member
Jan 5, 2003
1,285
0
36
Chattanooga, TN
Jun 3, 2004
#1
  • Jun 3, 2004
  • #1
My cars driveability is just not smooth anymore since I set it back to stock. flows and k&n are the only hp mods right now. I had a off-road x-pipe, cold air intake, diablo chip, 4.10 gear, pulleys, and a 160 thermostat.

Now the cars idle is not very smooth anymore, not a fluctuating idle, just a rough type idle that not really effects the rpms. Also when the air is on, the idle fluctuates.

When driving it seems to have a hesistation or bucking type feeling. My car is not throwing any codes. But about 5 weeks ago it though a code for about 1,200 miles and than went off one day. I have ngk tr-55 plugs with about 3,500 miles on them.

Anybody have any thoughts
Josh
 
0

03gtmustang

New Member
May 26, 2003
923
0
0
Northern Va
Jun 3, 2004
#2
  • Jun 3, 2004
  • #2
Could this be another case of a bad MAF sensor???
 
B

bdcardinal

tree hugger
Jun 10, 2003
3,612
16
69
santa barbara, CA
Jun 3, 2004
#3
  • Jun 3, 2004
  • #3
seems like the theme of the day. it can very well throw codes and not show a light. generally they are 2 trip codes, meaning that it has to happen twice before lighting the CEL. did your problems happen after reoiling the k&n? overoiling it can gunk up the maf and cause bad things to happen
 
M

MustangLife

Active Member
Jan 5, 2003
1,285
0
36
Chattanooga, TN
Jun 3, 2004
#4
  • Jun 3, 2004
  • #4
My k&n has never been re-oiled
 
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