Originally Posted by
austinbarrylee
thanks for help. sometimes the gauge jumps around. sometimes it jumps down to 16.9. but goes right back to 14.7-15.0. when opened full throttle the gauge doesnt go down to green sometimes it stays or jumps up higher. i have not saw the gauge in 12s and 13s
If the gauge is connected to a wideband o2 sensor (not the factory narrow band sensors) you should see a reading in the 11's or 12's in open loop (when it's floored or borderline). AFR's at 13 and above are very dangerous for the engine in open loop.