Quote:
Originally posted by dragon240sx
If I remember correctly the old HotShot design was a two piece that removed the first cat. converter and it might have changed the location of one of the O2 sensors and that's what caused the light to go off...not the header itself but the fact the computer didn't like the emissions equipment being changed...I also think the issue was only with the 95's or 96's and up because of the introduction of OBDII emissions programming in the computer.
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correct... the hotshot header replaced the cat. the OBDII cars also have a second o2 sensor after the cat which will trip the light. not sure as to how to correct this, but it doesnt change any fuel mapping at WOT so I never pursued a fix