Quote:
Originally Posted by gearhead63
yes we have a racepack. after releasing the 2stepp the afr goes from 10.5 to 12 att the first to second shift after that it varies between 12.5 to 13.5.
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What is hard to understand , is usually when your on the two step the O2 sensor is faked out , and will read very lean . This is because the two step interrupts the ignition which means some cylinders don't fire and the air passes right through the engine , and the O2 sensor reads that as excess O2 and therefore lean . Yours is reading rich , which is opposite from what I would expect . You may want to make a run without running the two step and compare the results .