hello yall. this morning i pulled the codes with my code reader and there were two codes, the usual PO300, but there was also a PO300 dp, does anybody know what this means. my car was just tuned so i know it should not be misfiring. i got the exedy twin disc clutch which would trigger the PO300, but the PO300 dp? any help please.

 

c'mon, any body?

 

Im not sure what the DP means, but maybe your still running rich with that tune. Did you try turning your boost down?

 

yeah thats the misfire code. There could be somthing vibrating to make that code come up. Maynot be an actuall misfire. I bought a code reader, and eliminated it.
i think its like $30 on ebay.
There was a big thread about this a year ago. basically everyone bought that code reader and it was all over.