Originally posted by Civic Type Sev
The "resistor mod" really does work. The way it works is that it is installed on the IAT sensor and modifies the signal so that the ECU will think it is colder air coming into the engine. This has two effects... it will enrich the fuel mixture since colder air is denser <-- umm do explain please how my car will "enrich the fuel"
and therefore contains more oxygen and the second effect is it will advance the spark timing accordingly. You will notice the most difference on a car that has I/H/E installed but
no fuel mods since the engine needs more fuel to begin with.<--- HUH??????