I have problems with the hego sensor? the check engine light would go on, off, on, etc, and the truck would act like it didn"t want to go. so i bought a scanner and it came up with 172(lean, right side). so i bought a sensor and put it in. no change. After checking for vacumn leaks, wiring shorts, egr problems, and maf problems I found a burned wire on the back side of the plug for the hego. i replaced the plug, but now i can get no voltage from the hego. 12v is fine, coninutiy is fine, so is it possible the new hego is blown?
also, I swithed to the rear tank today and it ran a lot better but i still have the cel.
I would appericate any help, thks