My fuel pressure woes
10-25-2002, 01:00 AM
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My fuel pressure woes Someone please tell me what's wrong?
My car now idles at 50 psi of fuel pressure and anytime I touch the throttle it drops to 30~40 psi? It also does not build pressure when the key is turned to the "on" position unless I cycle it a few times. I have an inline aeromotive fuel pump as well and that works just fine (set to come in at 0 vacuum).
I had this problem for a while and here is what I did to try and alleviate it:
-Changed the fuel filter
-Changed the stock fuel pump to a Walbro 255 unit
-Installed an adjustable fuel regulator
The problem is still as it is. Someone please help me out cause it's driving me nuts!
Edited because your version of the word fuel ('fule') was giving me a facial twitch - PSJ
<small>[ October 25, 2002, 05:06 PM: Message edited by: Pro Stock John ]</small>
My car now idles at 50 psi of fuel pressure and anytime I touch the throttle it drops to 30~40 psi? It also does not build pressure when the key is turned to the "on" position unless I cycle it a few times. I have an inline aeromotive fuel pump as well and that works just fine (set to come in at 0 vacuum).
I had this problem for a while and here is what I did to try and alleviate it:
-Changed the fuel filter
-Changed the stock fuel pump to a Walbro 255 unit
-Installed an adjustable fuel regulator
The problem is still as it is. Someone please help me out cause it's driving me nuts!
Edited because your version of the word fuel ('fule') was giving me a facial twitch - PSJ
<small>[ October 25, 2002, 05:06 PM: Message edited by: Pro Stock John ]</small>
10-25-2002, 08:12 AM
#2
Re: My fuel pressure woes I had a wire arcing in my Hot Rod. You may need to check that. <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />
Coach
<small>[ October 25, 2002, 11:32 AM: Message edited by: Coach 02 M6 Z/28 ]</small>
Coach
<small>[ October 25, 2002, 11:32 AM: Message edited by: Coach 02 M6 Z/28 ]</small>
10-25-2002, 03:54 PM
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Re: My fuel pressure woes thanks again coach,
well the tank is down and no arcing.
any other suggestions ??
i'm pulling the fule module out to see if anything is wrong with it.
well the tank is down and no arcing.
any other suggestions ??
i'm pulling the fule module out to see if anything is wrong with it.
10-25-2002, 04:58 PM
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Re: My fuel pressure woes </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by 1dirtyZ:
<strong>
installed an adjustable fuel regulator.
</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">What did you do with the intank regulator? Did you install a 97 vette fuel system (or maybe you have a 97 vette with a return line)?
-Geoff
<strong>
installed an adjustable fuel regulator.
</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">What did you do with the intank regulator? Did you install a 97 vette fuel system (or maybe you have a 97 vette with a return line)?
-Geoff
10-25-2002, 07:02 PM
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Re: My fuel pressure woes nope i just put it in where the t block is ( right befor the filter). i thought the in tank regulator was shot. if you do this then you could up the pressure from 60 psi to 80 psi but not lower than 60.
well i found out what was wrong!!!!!
it tured out to be the hose that goes from the fule pump to the top of the module. it had a hose clamp that wasn't tight enough.
i tightened it and whamo! 60 psi from the first prime of the pump!!.
well i found out what was wrong!!!!!
it tured out to be the hose that goes from the fule pump to the top of the module. it had a hose clamp that wasn't tight enough.
i tightened it and whamo! 60 psi from the first prime of the pump!!.