Quote:
Originally Posted by Robbierayy1
Very interesting! So it is the O2 sensor that is the key here? It can recognize the afr and relay the information to the ecu to compensate with the correct fuel trims? So all the oft tune does is advance the ignition timing right?, which I understand in how it produces more power
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Stock tune runs very Rich
Most tunes from any vendor will run leaner in 12 afr rarther than 11 or high 10
Most will adjust intake and exhaust cam timing as well as fueling amd ignition timing