Join Date: May 2006
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installed fuel pressure gage. changed tunes.
does changing tunes affect fuel pressure. here is what happened, I installed fuel pressure gage was running spartans max economy tune, fuel pressure read about 65 psi, unhooked the fass pump and the pressure dropped to o at times when I would get on it, when I was running the fass pump pressure never dropped below 55 psi. Went home changed tunes to the spartans agg street and fuel pressure never went above 20 psi. I cannot understand this. thinking about going back to the looney tune. please help me understand this. Brad.
03 F350 cc long box single rear wheel. with mbrp straight pipe, sct xcal 2 and edge evo as gauges.
Fass fuel system, power elbow, and zoodad mod.
And running on homemade Biodiesel during the warm months. innovatives and djs tunes. Egr delete and stage 1 fuel lines.