Fuel problem
01-27-2005, 11:32 PM
#1
Fuel problem
Is it possible to have a fuel pressure drop from a tune? I have 63lbs at idle and 63lbs at cruise and at wot the presure drops to 50 causing it to only rev to 5000 rpm's in 1st and 4500 rpm's in second indicating running out of fuel. I have checked the install of the new walbro 255 twice and is ok. It is a 2004 silverado 5.3 which has a returnless fuel system. sts turbo with 43lb injectors. Help please, driving me up a wall.
01-28-2005, 09:37 AM
#2
Originally Posted by hotrod04
Is it possible to have a fuel pressure drop from a tune? I have 63lbs at idle and 63lbs at cruise and at wot the presure drops to 50 causing it to only rev to 5000 rpm's in 1st and 4500 rpm's in second indicating running out of fuel. I have checked the install of the new walbro 255 twice and is ok. It is a 2004 silverado 5.3 which has a returnless fuel system. sts turbo with 43lb injectors. Help please, driving me up a wall.
01-28-2005, 09:51 AM
#3
Staging Lane
Join Date: Jan 2005
Location: Detroit, MI
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Originally Posted by hotrod04
Can somebody help please.
01-28-2005, 11:07 AM
#4
Originally Posted by BlackSilver
well i'm not real familiar with the walbro but i've seen fuel pumps just go for no reason. you may just need a bigger pump b/c your demands on it are too much for what it can produce
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