I'm trying to hook up an Autometer A/F ratio gauge (I know they are crap) and I'm having troubles finding the correct wire to tap into off the ecu. I have a P72 ecu and I have the pinout from a 96 integra helms manual. The problem is the colors don't match up perfectly from the manual to the actual ecu. The wire that the book says is the primary o2 sensor is white, but the book says it is suppose to be white and red. The wire that is suppose to be the secondary o2 sensor is white and red, but the book says it is suppose to be blue and green. Most of the other colors match up from the book to the ecu. I'm thinking I should tap into the solid white one and see if that works. Would it risk any damage to the ecu if it ends up being the wrong wire. Any help is appreciated.