Quote Originally Posted by FastFwd View Post
We cant get it past 10psi before it starts to lean out. Had a chat with some guys on another post and found that the Stock map sensor only reads 9.25psi could this be the cause? Maybe upgrade to an aftermarket inline fuel filter? Couple have said Electrical wiring to the fuel pump might need to be upgraded to a larger amp wire?
The stock MAP on 92+ readp 10.65psi, under 92 reads 9.25psi. the fuel pump wiring should be fine. Never hear of people upgrading the fuel pump wiring. As i suggested in another thread, buy a 2.5bar MAP sensor, not much at all, see if that fixes the problem & go from there. Hope this helps you on your mission....