mpg improved by computer chip

[SilverBullet75]

I just replaced my Fuel Pressure Regulator and gained 2 mpg, plus a much smoother/responsive feel.

[89Vette]

I just replaced my Fuel Pressure Regulator and gained 2 mpg, plus a much smoother/responsive feel.

This issue is definitely reported as the best diag/repair for the MPG blues! It's where the OP should start!

After that, djvx should consider (as LDub said) that there's really NO SUCH THING as chips that make factory cars create more HP. In the rare occasion that actually worked, you'd be looking at a chip that increased fueling. (You get a bit more power with more fuel.

But, the opposite isn't recommended. The cylinders run hotter when you lean things out. You might be able to find someone to do it -- if you're willing to burn up your valves. NO THANKS.

It is what it is. Except djvx: Yours is broke. Fix it. 9mpg isn't normal.

[89Vette]

And, if you don't like the post above....
http://www.gfchips.com/isuzuvehicross.aspx


Then tell us what you say to them 3wks after installation (uncensored of course)!