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Old 05-10-2009, 12:29 AM   #46 (permalink)
Smoove
EcoModding Lurker
 
Join Date: Jan 2008
Location: Manhattan, NY
Posts: 23

ZJ - '96 Jeep Grand Cherokee Laredo
90 day: 21.96 mpg (US)
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A friend that owns a local shop suggested that, so I swapped them back out with the stockers for a few hundred miles (I think 350, it was eight years ago so I am not 100% on that) and my numbers went down a bit more than stock. I then swapped out to a new set of stock Ford 5.0l injectors. Same crappy numbers, but a nice, smooth idle.

Then I had the XJ injectors cleaned, reinstalled them and saw a slight performance bump with a slightly smoother idle.

Yet, when I helped another local jeeper out and installed one on his 95 XJ he saw some decent gains. He was also on 35's and running 4.11's with a manual trans, so who knows.
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