When disconnected from the ECU, the o2 sensor reads 0.8v...very rich.

Has anybody ever tried eliminating the cold start valve? I'm wondering if I can find a threaded screw and simply plug up that port in the fuel distributor....

__________________
2016 Monsoon Gray Audi Allroad - 21k
2008 Black Mercedes E350 4Matic Sport - 131k
2014 Jeep Wranger Unlimited Sahara - 62k
2003 Gray Mercedes ML350 - 122k