Join Date: Jan 2009
Location: Shingletown ca
Thanked 63 Times in 59 Posts
sounds like you had poor fuel pressure which was starving the injection pump and wondeded of not killed it. best investment would be a fuel pressure guage once you get it all figured out. could have a bad ground to your lift pump as mine did and did the same thing. check fuel pressure first to know if your lift pump died.. sounds like someone may have known it was going out. 9.6 was that empty? I have never gotten under 11mpg with mine and it's a 4x4 and I was out wheeling and hauling that trip.
01 quad cab 4x4, edge drag comp, 4" exhaust, fass 150, 250 ddps, Jefferson State compounds 683hp so vp 11.91. AMSOIL front to rear. now back to stock 95 fummins in the works