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996 turbo O2 sensor replacement - how? - Page 1 - 911/Carrera GT - PistonHeads UK

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YOUR RESEARCH996 turbo O2 sensor replacement - how? - Page 1 - 911/Carrera GT - PistonHeads UK

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its rear bumper off

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I suspect its rear bumper off to access properly.
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996 turbo O2 sensor replacement - how? - Page 1 - 911/Carrera GT - PistonHeads UK

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its rear bumper off

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Discussions that suspect a cause: 1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

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Suspected cause
I suspect its rear bumper off to access properly.
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996 turbo O2 sensor replacement - how? - Page 1 - 911/Carrera GT - PistonHeads UK

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POST 1 / ORIGINAL POSTEROriginal post

Once again, as I decide I should sell my turbo, something goes wrong! I'm getting occasional hesitation - like a brief stutter - if driving at a steady speed on light throttle. Acceleration / boost is fine. I assumed MAF was the most likely cause but Durametric disagrees. Fault P1126 "Porsche fault code 356 - oxygen sensing adaption lower load range bank 1" was logged. Reading actual values does seem to confirm it's bank 1 oxygen sensor - bank 2 lambda value changes with the position of the accelerator pedal, bank 1 reading stays absolutely fixed at 1. So, I assume I need an oxygen sensor on bank 1. Not sure I've ever had any in the last 5.5 years / 40k miles so will do both. But how easy is it? I've searched but couldn't find any useful posts - only for non turbos. Can I do this without removing bumper and intercoolers? Any guides would be very handy.

POST 2Original post

I suspect its rear bumper off to access properly. Not a big job to be honest

POST 3 / ORIGINAL POSTEROriginal post

Cheers. Had the front one off before so assume the rear is equally easy - just hoped it might be even simpler. Ordered two new sensors today so will sort it in the next few weeks.

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