My 06 LBZ has a full exhaust with blocker plate. I've been getting the standard 401 "insufficient exhaust gas flow.." cel code from the day I installed the plate. I finally installed the fingerstick, carefully checking and tripple checking wire positions and then soldering connections. After many ignition cycles and driving the cel keeps coming back. Any ideas. Is there such a thing as a bad fingerstick?

I take it back. After three days of driving and many, many ignition cycles the light finally went out for the first time in 8 months. I don't know if it's because the cel has been on for so long or because of my truck having Northeast emmissions. It was definitley more stubborn than the light on other people's trucks.