Quote:
Originally Posted by BlownLSX
So the trick is to catch it on a cold start. For the first few seconds the valve should be wide open for catalyst warm up. During that time you can jump under and unplug the valve while it's open. This will have no visible faults. It will be a shadow fault that doesn't alarm the driver. Make sure you tape up and seal both the plug and receptacle on the motor.
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Super cool, thanks!
I have played around a bit with it today, I can open and close it via Sport/Comfort, when engine is hot.