4.6L (1996-2004 Modular) Mustang Technical discussions on 1996-2004 4.6 Liter Modular Motors (2V and 4V) within.

catalytic converter question

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Old 08-21-2009, 04:56 PM
  #21  
96gtchinook
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codes.......... P1131
P0156
P1132

pulled all three today.
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Old 08-21-2009, 05:39 PM
  #22  
cliffyk
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Look 'em up here--likely a wiring problem...
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Old 08-21-2009, 06:19 PM
  #23  
gunpig0313
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P1131=Lack of Upstream Heated Oxygen Sensor Switch - Sensor Indicates Lean - Bank No. 1
P1132=Lack of Upstream Heated Oxygen Sensor Switch - Sensor Indicates Rich - Bank No. 1
P0156=Bank 2 Sensor 2- Malfunction
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