i finally got my wideband hooked up and my car at idle is running at 20:1 afr which is way high. even when i rev up on the engine the ratio only drops to about 16:1. I've adjusted my fuel pressure from 40 to 30 psi and it had no affect! i have 30# injectors too. it has new plugs, coil, rotor and cap. i know i'm getting fire but i'm running way too lean. i know its has the same tank of gas in it for a couple years could this be causing it to miss and have such a lean mixture??