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  • SN95 4.6L Mustang Tech

What are these codes???

  • Thread starter Thread starter sliver02GT
  • Start date Start date Sep 21, 2004
S

sliver02GT

New Member
Feb 18, 2004
84
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0
Sep 21, 2004
#1
  • Sep 21, 2004
  • #1
i went to auto zone to see why my check engine light is on and they pulled code P1131 and P1151 and it said something about my DTC on the computer thing.......any ideas
 
B

bdcardinal

tree hugger
Jun 10, 2003
3,612
16
69
santa barbara, CA
Sep 21, 2004
#2
  • Sep 21, 2004
  • #2
P1131 Lack Of HO2S11 Switch - Sensor Indicates Lean

P1151 Lack Of HO2S21 Switch - Sensor Indicates Lean

you front O2 sensors say you are running lean on both banks. from the looks of you mods you are running lean. you need more fuel in the motor.
 
S

sliver02GT

New Member
Feb 18, 2004
84
0
0
Sep 21, 2004
#3
  • Sep 21, 2004
  • #3
ok

bdcardinal said:
P1131 Lack Of HO2S11 Switch - Sensor Indicates Lean

P1151 Lack Of HO2S21 Switch - Sensor Indicates Lean

you front O2 sensors say you are running lean on both banks. from the looks of you mods you are running lean. you need more fuel in the motor.
Click to expand...

ok well how do i fix that???
 
B

bdcardinal

tree hugger
Jun 10, 2003
3,612
16
69
santa barbara, CA
Sep 21, 2004
#4
  • Sep 21, 2004
  • #4
well the safest way to fix it is to get a dyno tune. i can only tell you prices from my area, which are around $175 to strap it down and $150 an hour after that.
 
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