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

Eng Refresh + LMA, etc 55

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By the way, it is important not to operate the compressor if there is not enough refrigerant left in the system.

This NSX lost almost all of the refrigerant that the triple pressure switch under the bonnet didnít allow the compressor clutch to engage.
So, during the Function & Operation check, didnít want running the engine when testing the compressor CL feature.

Override the pressure switch and just monitored the gap change at the compressor CL when the condenser fan engages.

In this way, you can confirm that the a/c ccu, ecu and FCU are working together fine without running the engine.