#105663, "FRUSTRATED AS HELL......NEED HELP ASAP, PLEASE!!!!!"
Alright, I have a problem that I am in desperate need of help with. The questions are how do you wire the aem uego gauge up? And Why am I so rich and why can't I adjust the fuel pressure any more? But first let me give you the low down. I just did a complete engine rebuild. The part I need help with is the fuel system. Instead of MS I opted for the old technique with the safc 2, sfmu, and 450cc injectors. I installed the injectors with a resistor pack since the injectors had to be ran with a resistor pack. I used the diagram off of here to wire them up. Now I'm pretty sure I wired them correctly, but not 100 %. The sfmu has the smallest disc in there that runs the lowest rising rate. I set the static pressure to about 40-42 psi at first. I tried adjusting the fuel pressure via the vacuum port screw while idling and I didn't get any different reading. It says that the vacuum adjustment may not work if you have larger cams. Well I don't think there larger, but, I do have the Crane Arms stage 2 cams. So I don't know if that is why. I'm also running rich as hell. I tried adjusting lo throttle on the safc but I didn't see that much of a difference, because it still runs rich. I have the aem wideband but I am waiting for the o2 sensor to arrive before I install. The bad thing is my car idles ruff. While I was setting the lo throttle the rpms started fluctuating and It kinda bogs down when i give it a little more than usual gas. What could be the problems??? Please help me, i have to have my car running asap!
#105665, "RE: FRUSTRATED AS HELL......NEED HELP ASAP, PLEASE!!!!!" In response to Reply # 0
When i ran this way on 440cc/min injectors, I had to set my SAFC to -50% at 1000RPM LO THR for the car idle within the stock trim range at ~45psi of fuel pressure.
FYI, the vacuum port doesn't do much good for raising and lowing fuel pressure. use the big effing bolt on the top of the thing - that's what its for.
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