Join Date: Jul 2009
Location: Vancouver, BC, Canada
Feedback Score: 0 reviews
Once again. Removing the back pressure sensor will directly effect your fuel economy. In fact, on a diesel that's all it helps the CPU with. It helps the CPU determine fuel mixture along with other sensors of course. So you removed one of its equations and it runs on default now. Which will be rich, which will drop your fuel economy. 2 mpg would be about right over a tank a bit rich. Put it back, and your CPU will then be able to calculate fuel economy with your new add ons, and fuel economy will be better than before most likely. If not the same. The CPU already recognizes your add ons, but has lost part of its information network without back pressure, and cant take advantage of your add ons because it must run rich on default information. Default will never run lean. Lean doesn't keep your truck running in a sensor loss situation. So all vehicles will either run rich on default, or de rate hp and run rich like a semi truck does with sensor loss.
2002 F350 Super Duty, Crew Cab,Long box,4x4, 7.3 PSD, Complete rebuild .010 over by myself except balancing, 2000hp billet connecting rods, ARP main and head studs, ceramic coated pistons, Smith Bros Chrome Molly push rods, Comp Cams springs, shims and seals. Competion complete valve set and head grinding and vacuum tested, Adrenaline HPOP, DP Tuner Infinity DX programmer and full load of tunes modified for my new Stage 3 250 shot injectors, ceramic coated exhaust manifolds and up pipes and collector, BD Diesel triple clutch furnace brazed billet torque converter and BD pro engine brake and compressor set up, MBRP 4" stainless turbo back, Driven Diesel regulated fuel return system, AFE pro stage 2 cool air intake, riffraff billet Whicked Wheel 2 compressor wheel in a GTP38R turbo, riffraff blue cooler boot kit and coil clamps, International Double Ceramic Coated Bellowed Up Pipes
1999 Mustang GT Convertible Anniversary, rare stock electric green
2009 40' Raptor Velocity Toy Hauler