pinoy_Joe

I had my car tuned and it made a good amount of power, but the guy said that they had to enrich my fuel system a lot to solve a/f problem. I recently replaced my fuel pump and it seems that I am getting to much fuel. I can build boost but will not make more than .45 bar and if I give it full throttle the car bucks hard. If I reinitialize my computer do you guys think this would help. I can just a dyno appt. within the next two weeks. My mods. dp,cb,mp,pfc,profec b, and walbro pump.

cewrx7r1

iTrader: (2)

It is obvious you do not understand the PFC and what tuning they did, and how it affects the PFC and engine.

They added a lot of fuel by increasing the pulse width to the injectors because your pump was weak and loss pressure as fuel requirements increased. Now you put in a better pump that can flow more fuel. Thus the new pump is supplying more pressure causing the engine to run rich. This was expected to happen.
DAPDAS!

Re-initializing will put all maps back to the default and maybe lean or not. Either way, your engine needs to be retuned again to be safe