Is this normal or did the SFMU took a crap? When i first start the car the fuel pressure is like 35psi, after driving to work (about 20 miles) it drops to 15-22 psi. It just doesn't seem right to change that much. I'm running a walbro pump and 40# accel inj's, at least that's what the guy that sold them to me said. I'm installing the safc II and the jumptronix afr meter this week.

Open the top of the SFMu and make sure the diaphram isn't ripped.

thanks, i'll try that