by the fallen303 » Tue May 11, 2004 12:45 pm
the little box just before the throttle body, is a resonator, thats all. if you can, just get a new pipe right off the throttle body, and run it to where you want the filter, and away you go. strongly recommend fitting the sensor back into the pipe somewhere though, as this picks up the temp of the air entering the engine, and when the air is colder, it's more dense, so more oxygen, so the ecu needs to know the different air temps, otherwise it doesn't get the mix quite right. not harmful, but still runs better with this sensor working.
(finally, someone else with a fe 101!!)
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