so i had my EM1 boosted and its time to sell. i already sold the mildly built motor and turbo kit, i bought a jdm b16a and swapped it in so i can sell it stock(did the ecu wire tapping also to trick the crank sensor) but i have my walbro fuel pump in the car still. do i even have to swap back in a stock fuel pump? or will the o2 sensors level everything out and compensate for the higher fuel pressure the pump gives it and open the injectors a little less

 

Somebody correct me if I'm wrong here, But all a fuel pump does is increase the duty cycle, That being said. I rolled around for 2 months with my walboro 255hp/lp Before i put my turbo kit on and got it tuned and didn't notice a difference.

 

bump.... need to know before i can put the car up for sale thanks

so your mpg didnt change at all??

 

It's best to put a stock pump in there and sell your Walbro separately.

 

it wont hurt anything but you can sell it and make some coin