Gts4 Start Up And Not Taking Boost

[MJTru]

Hi guys. I finally got this rb26 started. Before i had another rb26 in it running a power fc d jetro and it ran fine. This time im using a l jetro from a r33 (power fc) seems all the same other than oxygen sensors and afm ramp setting from what i saw online right here on this site.

Here is whats happening. At about 4500 rpms the car dies. Like a fuel cut or somthing. It falls flat on its face kind of like when a traction control system kills the power on a car that has that system. The car idles fine runs great, all values seems right on the power fc hand held. Afm at 4500 is at 3.02 volts the tps is reading good and progressively goes up as i step on the gas, afm are at .245 volts with engine off and .956 at idle. I should add that im not running any oxygen sensors, and its on open loop, im also using 2 rb25 3 wire afm's. Everything just seems fine until boost comes in.

So what all can cause fuel cut.??

[MJTru]

Hmm. I found it. Seems like the gts4 has no fuel pump module

All i did was cut 2 wires from the ecu plug. These wires are for fuel pump module 1 and 2.

Only the fuel pump relay was left intact. Took it for a drive and its all good. The car now eat up boost.

I hope this info helps someone later on.