MAPed Blue Top Swap, NOT staying running! Please Help?!

[jondee86]

When you are checking for fuel by pulling hoses off, there should be
more than a trickle coming out !!! The pump should be capable of making
around 30 or 40 psi (2-3 Bar), and fuel should squirt out like water from
a garden hose

The FPR is there to make sure there is pressure in the rail, not to stop the
flow of fuel. When the engine is idling, I would guess that about 90% of
the fuel arriving at the rail is going back to the tank through the FPR.

The vacuum hose from the manifold to the FPR adjusts the rail pressure
according to manifold vacuum. If you don't have the hose connected, the
injectors will over-fuel at idle. If you are running an O2 sensor, maybe the
ECU can compensate... if not, it will run rich at idle, and improve as the
manifold pressure drops.

The MAP sensor needs to get the best quality vacuum signal possible, and
this is usually pulled from the middle of the manifold. I don't know how
the internal porting works at the throttle body, but I think you will be
better off putting the hose back on the OEM plug.

Cheers... jondee86