5.4L Trouble Codes
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5.4L Trouble Codes
Hello all,
My 1997 Expedition is throwing a CEL with the following codes:
P0133 - Oxygen Sensor Circuit Slow Response (Bank1, Sensor1)
P0153 - Oxygen Sensor Circuit Slow Response (Bank2, Sensor1)
P0401 - Insufficient EGR Flow
P0402 - Exhaust Gas Recirculation Flow (EGR) Excessive Detected
P1131 - Lack of Upstream Heated O2 Sensor Switch - Sensor Indicates Lean - Bank No. 1
P1132 - Lack of Upstream Heated O2 Sensor Switch - Sensor Indicates Rich - Bank No. 1
Does anyone have any thoughts where I should start looking on this? Could this be a clogged CAT or a bad PCV hose? Would a two bad O2 sensors cause the EGR codes to appear. Any assistance on this would be greatly appreciated.
Thank you
Chad
My 1997 Expedition is throwing a CEL with the following codes:
P0133 - Oxygen Sensor Circuit Slow Response (Bank1, Sensor1)
P0153 - Oxygen Sensor Circuit Slow Response (Bank2, Sensor1)
P0401 - Insufficient EGR Flow
P0402 - Exhaust Gas Recirculation Flow (EGR) Excessive Detected
P1131 - Lack of Upstream Heated O2 Sensor Switch - Sensor Indicates Lean - Bank No. 1
P1132 - Lack of Upstream Heated O2 Sensor Switch - Sensor Indicates Rich - Bank No. 1
Does anyone have any thoughts where I should start looking on this? Could this be a clogged CAT or a bad PCV hose? Would a two bad O2 sensors cause the EGR codes to appear. Any assistance on this would be greatly appreciated.
Thank you
Chad
Logistics Pro
Joined: Jan 2001
Posts: 3,740
Likes: 37
From: Central NYS
Does this truck have any exhaust leaks?
Maybe a rusted out ERG tube?
What has been done to this truck recently?
Maybe a rusted out ERG tube?
What has been done to this truck recently?
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goingnutz13072
1997 - 2006 Expedition & Navigator
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Nov 28, 2006 08:17 AM
