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Code p1135 and codep1155 on a 2001 rx 300 Lexus

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Old Jan 31, 2018 | 01:58 PM
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JcAviles
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Default Code p1135 and codep1155 on a 2001 rx 300 Lexus

Good evening in need of some major help. I have a 2001 rx 300 Lexus. The CEL came on a couple of weeks ago. My husband looked the codes up and replaced the o2sensors that it stated need to be replaced. But we are not sure why the codes will not go away. Can anyone give us some ideas on what to do and yes we used DENSO o2sensors. Please help. Any ideas would be gladly appreciated

Last edited by JcAviles; Jan 31, 2018 at 02:02 PM.
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Old Jan 31, 2018 | 02:52 PM
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Did you disconnect the battery to clear the codes (or use the code reader)?
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Old Jan 31, 2018 | 03:03 PM
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Yes he did remove the codes by doing both things but then the codes come right back on.
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