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lol. there is no "risk" to resetting your ECU (simply pulling a fuse or disconnecting the battery terminal for a few minutes). Whether you will get any benefit depends on how your ecu works. Either way, its a precautionary thing to do if you are significantly changing any of the aspects that would affect the performance of the motor. Its more of a "you never really know, so best to err on the side of caution" type thing. For example, when I change plugs I always reset the ecu because there is a good change that the gap on the plugs is not exactly the same as it was before. For "learning Ecu's", it will "erase" the memory of whatever fuel map was running before, and adapt to the new circumstances to find the stoichiometric AFR. But there is no harm that can come from it, so its kindof pointless to NOT do it.
However on an side note, OP - do you not realize the irony of referencing a bunch of "ricer idiots asking if they should reset after every little mod such as ridiculous as changing spark plugs".............. and then you post a thread asking if you should reset the ECU? LOL. You're not going to find a conclusive answer here, I will tell u that much. Every ECU is different, every owner is different. Certain times its recommended to reset the ECU, other times its not.
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