LWFW (light weight fly wheel - rv)
#16
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The dealer can't do anything to adjust idle or otherwise with the PIWIS tester to compensate for LWFW. I don't think it's even possible to plug in a RS VIN, as the PIWIS reads the VIN of the car it's plugged into, and give the car an RS flash. My guess would be a flash update due (needed) for your car