anyone ever close the emissions control air valve on a vee? disabled the o2 sensor/lanbda sensor. just wondering how you would close the emissions control air valve and the purpose of doing so? wondering as I read this from Bsd performance's website:
http://bsd.uk.com/Suzuki-DL1000-power-c ... no-set-up/Here’s a bike made for a Power Commander – Suzuki’s DL1000 V-Strom; not a performance bike but typical of many big V-twins. The owner wasn’t happy with its on/off snatchiness at low rpm and fitting a PC III, closing the emissions control air valve, removal of the lambda sensor and a full set-up on the Dyno made all the difference, smoothing the engine out radically.
Now, in a high gear at low rpm the engine pulls cleanly; getting rid of the lambda sensor is key – which at best is useless trundling around in traffic as it’s off/on for the catalyzer – while the PC III manages the extra fuel the engine needs (and where it needs it) nicely.
