Ok i just did an injector swap with bosch III's from southbay and now i am running even leaner than i was before. My BLM'S is now 160 as well as the integrator. i don't have any vacuum leaks or exhaust leaks. i am also getting a code 44 lean exhaust code. I think that it may be the fuel pump but i havn't checked it yet with a gauge all data values check out while datalogging is there anything else that i can look at?

 

Fuel pressure!

 

I just had the fuel pressure checked and it was 37 psi at idle and went up to 39 with regulator vacuum hose disconnected so i am going to replace the pump does anybody have a recommendation as to what pump to get?

 

If it's 37 at idle , it's not the pump. Just had issues with mine and it turned out to be the pump RELAY. Was 8 volts only getting to the pump.

 

the relay is new and i datalog with tunerpro rt and the fuel pump voltage is the same as battery 13.4 v when running