- Sun Aug 01, 2021 4:33 am
#52203
Hi, I'm new to the forum and I am very excited to learn about arduinos being used to open up a whole new world of engine management for everyone. I have a hypothetical question. Is it possible to use an Arduino in a way rather than for example a piggyback that steals and modifies the signal to the factory ECU you steal the signal going to the fuel injectors? you plug the factory fuel injector plug into the board it sees a signal to fire an injector and mirrors it on the output plug that connects to the fuel injector. The board then looks at a signal from a wideband sensor and determines if there needs to be an addition in spray duration or a reduction. The idea being if you can balance the fuel-air ratio for performance mods without the factory ECU even knowing it's happening you can pass smog checks because the factory ECU when hooked up to a diagnostic computer will appear completely normal and believe it is in control of the car. So instead of piggybacking, stand-alone, or parallel this would be hijacking. Is this feasible or are there a dozen complications with this theory that my lack of knowledge does not privy me to?