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

4 trouble codes... any linked?

  • Thread starter Thread starter tomustang
  • Start date Start date Oct 31, 2004

tomustang

Psychotic Member
Founding Member
Jun 8, 2000
3,434
2
78
McLean Hospital
Oct 31, 2004
#1
  • Oct 31, 2004
  • #1
P1409
P1131
P0135
P0301

i know what they are but i don't know if they are linked to each other. the P0135 is because my o2 wiring is torn off so i know why the light's on. but the others i don't have a clue.
 
B

bdcardinal

tree hugger
Jun 10, 2003
3,612
16
69
santa barbara, CA
Oct 31, 2004
#2
  • Oct 31, 2004
  • #2
P1409 EGR Vacuum Regulator circuit malfunction

P1131 Lack of Upstream Heated Oxygen Sensor Switch - Sensor Indicates Lean - Bank No. 1.

P0301 Misfire Detected - Cylinders 1-10.

P0135 Upstream Heated Oxygen Sensor Heater circuit fault - Bank No. 1.

check the vacuum on the EGR, and there is a misfire in #1, could be the spark plug, wire, or fuel injector. i would do a compression test on all cylinders just to be safe.
 

ragu1585

Member
Jul 22, 2004
152
0
16
Spring, TX
Oct 31, 2004
#3
  • Oct 31, 2004
  • #3
when i first got my 98 ,, i was gettin a 1130 and 1131, went to the store put some stp gas treatment in the car and havnt seen the light on in about 4 or 5 months
 

tomustang

Psychotic Member
Founding Member
Jun 8, 2000
3,434
2
78
McLean Hospital
Nov 2, 2004
#4
  • Nov 2, 2004
  • #4
bdcardinal said:
P1409 EGR Vacuum Regulator circuit malfunction

P1131 Lack of Upstream Heated Oxygen Sensor Switch - Sensor Indicates Lean - Bank No. 1.

P0301 Misfire Detected - Cylinders 1-10.

P0135 Upstream Heated Oxygen Sensor Heater circuit fault - Bank No. 1.

check the vacuum on the EGR, and there is a misfire in #1, could be the spark plug, wire, or fuel injector. i would do a compression test on all cylinders just to be safe.
Click to expand...

thanks for the info. how do i check the vacuum on the EGR?
 

tomustang

Psychotic Member
Founding Member
Jun 8, 2000
3,434
2
78
McLean Hospital
Nov 2, 2004
#5
  • Nov 2, 2004
  • #5
i noticed when i was peeking around that there wasn't an EGR gasket in there. would that be alone enough to send off the P1409?
 
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