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Poor Gas Mileage after swap? Poor Gas Mileage after swap?
LSX Truck Conversions LSX, 4.8, 5.3, 6.0, 8.1 Swaps
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Old 01-27-2010, 05:03 PM
SpecV44 SpecV44 is offline
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those are programmers, EFI Live and HP Tuners are tuning devices. There are BIG differences between programmers and tuners.
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Old 01-27-2010, 05:05 PM
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foggy foggy is offline
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Look to Nelson Performance for a tune. Nelson Performance - Performance without Sacrificing Drivability
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Old 01-27-2010, 05:32 PM
flattopwill flattopwill is offline
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Quote:
Originally Posted by WARLOCK View Post
Thats terrible mileage. I get 20 to 22 in my truck. Who did your tune?
In town?! Dam! How do i get mine to get that?!
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Old 01-30-2010, 04:31 PM
sgirt sgirt is offline
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Update. I bought a new o2 and the HPTuner software. (It hasn't arrived yet). I also disconnected my Oil Pressure Guage that was connected to the sensor on the back of the 5.3. How does this look?

And this one.
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Old 01-30-2010, 04:38 PM
RedHeartbeat RedHeartbeat is offline
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Woohoo! Now you have it cycling! I bet it gets better mileage now.
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Old 02-07-2010, 03:39 AM
69face 69face is offline
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Originally Posted by RedHeartbeat View Post
Woohoo! Now you have it cycling! I bet it gets better mileage now.
i hope so! that's a pretty big difference that the trashed o2 was making the motor compensate for. congrats dude! I love when problems are properly diagnosed.
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