Hi all,

Just recently my 03 Evo 8 started up running rough out of nowhere without any Check Engine Light showing. Decided to change out the spark plugs, still no go. Then I changed out my fuel pump to a Walrbo 255HP, still nothing. Then swapped the stock injectors to some RC-1000s and still runs just as rough. I picked up a Tactrix cable and pulled the map:

original.bin

I was hoping someone could check my map and see if there is anything sticking out wrong... And a little help with a tune would be sweet...

 

Either you can purchase evoscan and pull the code the ecu is throwing by yourself.

Or you can go to your local auto parts store and have them check the code for you. Then you could browse around here once you get that code. Without it, it's really hard to diagnose the problem you are having.

 

If you didn't scale your RC1000's in the ecu, the bigger injectors aren't going to help the issue. They are going to make it worse.

And yes, pull the code it's throwing out and let us know, then we can go from there.

 

Your ROM file is not stock, it's hard to tell what's wrong there. You can start by reflashing your ECU with a fresh, untouched 94170015 ROM, just don't forget to copy your immo code and RC1000 injectors latencies and scaling

 

Well I just reflashed to 94170015 ROM and bought Evoscan. Found the Code to be the infamous P0134... Thanks guys!