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Today at Atelier Kaz - Private NSX Enthusiast, ex-Honda R&D engineer with F1, Indy/CART background

Eng Refresh, Health Check, etc 26

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Cut off the super rusty exh spring loaded bolts.




New primary NTK O2 sensors at both banks.
Although it's a OEM direct replacement, still, you need to mark the cable holder position and use high temperature spec tyrap/etc to hold it in place.

Especially at the front bank with OBD2 spec, you will need to transfer the original cable holders to the new sensor loom.






There was no CEL but already, the existing O2 sensor was showing the sign of contamination so good call to replace both of them at this point.

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