![]() Unfortunately, while many of these types can access some or all of the correct data, most have zero training or knowledge of the dynamics of engine tuning. When it comes to open-source and the like tuners that reflash factory ECUs, it’s not uncommon to find an individual that is an exceptional cracker and hacker that can find some, most or all of the factory fuel and ignition maps in the ECU. However, finding someone that actually knows how to tune isn’t so easy. ![]() Today, finding someone that claims they know how to tune your ECU is easier than ever. With quality UEGO/Wideband systems retailing for under $300, nearly anyone can afford to outfit a vehicle to provide monitoring of air-fuel ratios. A number of aftermarket solutions also allow the OEM ECU to be recalibrated. Plug-n-play engine management systems have cut installation time down from days and hours, to hours and minutes. As for being able to recalibrate your factory ECU, the open-source and other options simply didn’t exist. In the 90s, the Horiba unit that delivered the best performance would take $10,000 out of your wallet. Until just a few years ago, the UEGO systems to read air-fuel ratios were also quite expensive. The complexity of the install deterred many from learning the skills necessary for proper engine calibration. Before plug-and-play, a stand-alone system required hours for proper installation of the flying-lead harness. Before the advent of plug-and-play engine management systems, affordable UEGO sensors, and open-source reflash programs, the number of engine management “tuners” were limited.
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