Originally posted by spooncivicb16b
go to jdmfan.com the show you how to make a o2 sensor resistor so you can fool the ecu. i have a race cat and my check engine light is on but my car runs better when its on than when i reset it.
goodluck
i have a high flow cat also and the CEL always comes on but i reset it. sum1 that had same problem said to just leave it cuz its not doing no harm but everyone on these boards say it must not be good. what did u do to ur car and is ur CEL still on?
2001GSR