I just typed a long reply and it got deleted,not happy. thanks gearheadefi. Now Put the DAM wideband where it belongs. Stop trying to chase goofy injector data theories. Injector data is a small small part of your problem. Surprised these guys here haven't figured it out for you. This problem is not that complicated. Put the wideband in the PROPER location. Before a hollowed out cat is not the PROPER location. AGAIN what are the narrowband voltages telling you? If you knew how to read or post logged data you would see what the problem is. Good luck
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