Super VXer
The lowest mpg I've gotten is 17.5. I always run stock size tires, so my odometer is apparently correct. Last summer I checked my mileage with three fills in a row on stock spark plugs with 77K miles and got 19.73-19.97. This week with new plugs after 9K miles I filled up and drove 304.6 miles. It took 15.44 gallons to refill, so that comes to 19.73 mpg. I guess it could be the summer fuel mix, but whatever it is, I like it.
Mark Griffin
Super VXer
When I went to the Vermont VX-Plore meet from PA I was running my VX with cruise at 65 most of the way traveling interstate 90 with 31" Bridgestone Revo AT's(@40psi with 44psi max) and the SC/CF intake and got 22.6 mpg (no adj. for tire size) on the way to the meet and busted 23 mpg (no adj. for tire size) on the way back. I did swap out my fuel pressure regulator a few weeks back.
Spazz...I think you should change out your fuel pressure regulator...my VX got worse mileage over time and even started having starting issues when hot (i.e. stopping for gas it would take 2-3 times to restart)...all of this was cured when I changed out my fuel pressure regulator.
Last edited by Jolly Roger VX'er : 07/10/2005 at 10:34 AM
[SIGPIC][/SIGPIC]"If its fast and reliable, its not cheap;
if its fast and cheap, its not reliable;
if its cheap and reliable, its not fast."
If love is blind, why is lingerie so popular?
Super VXer
Fuel Pressure Regulator???
Super VXer
oops..sorry...yes thats what I meant..."fuel pressure regulator".Originally Posted by SPAZZ
http://www.vehicross.info/gallery/sh...time=&sortdir=
Last edited by Jolly Roger VX'er : 07/10/2005 at 10:45 AM
Super VXer
how easy to change myself??
Super VXer
I pretty sure I paid about $48 and ordered from my dealer. You can also buy what my dealer called a rebuild kit for $12 but I recommend buying the whole unit as you see it in the pic posted in my last post.
I have the SC so I only had to remove the one fuel rail with 3 injectors..you being stock I can't remember if you have to remove the whole fuel rail or not...somebody please chime in! You should begin by pulling off the cosmetic cover that has the 3.5 DOHC on it and you'll see your fuel rail with fuel pressure regulator attached to the rear of the driver side where fuel line hooks to bottom of it. Ask Tone if nobody chimes in but my job only took about an hour to do...not hard. I had to replace two injector o-rings too because they were damaged either when installed or when I pulled them out.
The new part has a new lock ring too in case you don't want to reuse the old one. If you can do all that CV front-end stuff you do spazz, this is a piece of cake......I purged fuel pressure too just like when you change fuel filter so you don't have gas spraying all over!
Super VXer
$48???? huh, what??? Isuzu dealers I talk to want like $200 ..even St Charles and the auto parts stores want like $150 to $170 for the "Fuel Pressure Regulator.
Where do you shop?
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