that's what the JRSC comes with - EMS = "engine management system," which is basically a black box that retards timing and spoofs the map sensor and intake air temperature sensor readings. fmu is fuel management unit, it's a rising rate FPR.
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Originally posted by nuro
just from glancing at the list it seems like the most reliable option is the jrsc with jr ems/fmu.... i hate to sound clueless but what does ems and fmu stand for?
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