I have a 2003 evo i am interested to flash my ecu with dynoflash, my car have never trow a cel my upgrade are k&n drop in filter, MBC set to 19.5 -20.00 psi, MR BOV, and Perrin cat back exhaust system. I would like to know if with your flash i will not have the p0300 problem or i have to test it with the flash to see what happend. What problems this code can cause to my car? i am not planning to do more upgrade for know, do i have to change my fuel pump or i can use the stock one with my upgrade. i use my car for daily driving.

 

The flash should not effect your CEL status in any manner

 

before the flash, do i need to change the fuel pump or is safe with my current settings?

 

before the flash, do i need to change the fuel pump or is safe with my current settings?

 

upgrade your stuck fuel pump to a walbro ...stock fuel pump sux