87turboIIpat

i just hooked up the parallel fuel set up and the aeromotive regulator wont go above 25psi under idle. when i try to make a second gear pull it studders like its not getting fuel at first then smooths out. it is also running richer then 10.0 afrs.

87turboIIpat

can anyone help me out. i cant figure it out. no matter what i do i cant get the fuel pressure to go higher than 25psi.

calpatriot

Fuel pump dying? Test static fuel pressure per FSM
Regulator faulty? What pressure do you get if you disable the regulator (not familiar with this regulator, but the stock unit you check by removing the vacuum line)

But if you AFR is 10:1, that is way richer than best power (abt 13:1). Are you sure the problem is that it is getting too little fuel, or could it be getting too much? What does your AFR do during the stutter?

87turboIIpat

when it starts to stutter my plx wideband says rich meaning under 10.0 afrs why would it start to run rich after the parellel set up.

calpatriot

The low fuel pressure and rich mixture almost sound like an injector is stuck open, or maybe the idle mixture needs to be readjusted to compensate for your new setup?

What does your fuel pressure show when the line is capped off, i.e. no flow to engine?

87turboIIpat

ill get some hoses maid and run them around the fuel rails and see what pressure i get

HAILERS

Just tee your gauge into the pressure hose that leads from the fuel filter to the hardline on the engine.

87turboIIpat

under idle before the fuel rails im getting 32 psi and i cant get more than 22psi at the regulator.when i try to prime the system by turning the key to the on position i get nothing 0psi.i dont start to get pressure till the engine starts turning over