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Codes p0031, p1148

I’m looking across the forums but am stumped , will I need a new upstream sensor or will I just need a tune for throwing codes p0031 and p1148, Installed

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Old 11-17-2020, 02:42 PM   #1 (permalink)
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Default Codes p0031, p1148

I’m looking across the forums but am stumped , will I need a new upstream sensor or will I just need a tune for throwing codes p0031 and p1148,

Installed ART pipes . Z1 said I need upstream sensor .
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Old 11-17-2020, 02:50 PM   #2 (permalink)
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I’m looking across the forums but am stumped , will I need a new upstream sensor or will I just need a tune for throwing codes p0031 and p1148,

Installed ART pipes . Z1 said I need upstream sensor .
Google says verify the circuit before replacing the A/F sensor (upstream O2). It is possible that either the wire is broken/burnt through, the fuse blown or both. Link to FSM is in my sig.
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Old 11-17-2020, 02:51 PM   #3 (permalink)
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Google says verify the circuit before replacing the A/F sensor (upstream O2). It is possible that either the wire is broken/burnt through, the fuse blown or both. Link to FSM is in my sig.

You wouldn’t happen to know the circuit


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