alrighty, yesterday i decided after a huge amount of diag and testing(15 minutes checking connections) that my 144k mile upstream o2 sensor just needed to be replaced. yup it sure did, the change in the way the motor runs is amazing. but now i am curious.
is it just the location of the plug or does the upstream o2 have a direct affect on the ebcs? it seems that i have more consistant boost. going by ear and butt dyno, no guages (installed) just yet. but really, it does drive quite a bit, stronger maybe?