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CEL code P1115

Crystal Shine
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Crystal Shine Member

Crystal Shine

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2000 Boxster S with 68000 miles. The car is running poor gas milesage. About 25 mpg on freeway 75 mph. I am planning to change the oxygen sensor on the passenger before the cat. Am I going to right direction? Please advise.

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Loren Member

Loren

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P1115 Oxygen Sensor Heating Ahead of TWC, Bank 1 – Above Limit

I would clean and check the connector on that sensor first - then reset the CEL and see if it comes back.

If it does then replace it.

Crystal Shine Member

Crystal Shine

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P1115 Oxygen Sensor Heating Ahead of TWC, Bank 1 – Above Limit

I would clean and check the connector on that sensor first - then reset the CEL and see if it comes back.

If it does then replace it.

I did cleaned the o2 sensor's connector a few times. It did work for short time (a few thousond miles). Now, CEL comes back pretty quick (a few hundred miles). I guess I need to buy new one. Thanks Loren.

Crystal Shine Member

Crystal Shine

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Part Number and Instructions

Here

Hello mikefocke,

Thanks for the link. I read it many times and Have a question in mind. Why the universal sensor cannot be solder?

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