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rsx 02 reflash uses secondary o2?

Posted: Sat Apr 11, 2009 9:42 pm
by Engine9
hello Hondata

i have a 02 type-s with reflash #4, prb ecu

i am putting on a header and will need to replace my secondary o2 sensor. Im wondering if reflashed ecu uses the secondary o2 sensor??

If i dont replace it, will the car go into limp (safe) mode?

thank you

Posted: Mon Apr 13, 2009 8:01 am
by Hondata
Yes, the flash needs the seconday oxygen sensor.

No, if you don't have the secondary o2 sensor the ECU will not run in limp mode. However, it will generate a check engine light and you'll fail any emissions test.

Posted: Mon Apr 13, 2009 3:00 pm
by Engine9
thank you

so aside from "no-catalyc converter CEL" there should be no other problems?