I have a 1988 Chevy Full size blazer. It has a 350 5.7 that is brand new crate motor. I have the TBI system on it. Here's what it's doing. I start the truck Idles fine (I changed the IAC and the TPS) bring up the RPM's to around 2000 and hold it for a few seconds and it start back firing and popping. It seems like it's running out of fuel and leaning it self out. I put a new fuel pump in last year so i believe it has decent fuel pressure (although I don't know this cause i don't have a gauge on it.) But, Assuming that the pressure is good, what else could be the problem? Fuel Regulator in the TBI? Would this cause a lean condition. It also seems that is has less power then it should have.
It is in the throttle body.
It is located in the throttle body.
likely under the upper intake manifold
try the fuel pressure regulator
The voltage regulator is built into the alternator.
It is built into the alternator.
Inside the alternator
In the throttle body.
do you have TBI ?
The fuel pressure regulator is part of the fuel pump in the fuel tank.
It is on the pump, in the tank.
were is pressure regulatore on Chevrolet silverado 1500 5.7