Heres whats going on, Im only getting on the DIC 11.7 for one, Ive done mostly city driving and have gone 107 miles and used just under 3/4 of a FULL tank. (There isnt much heavy throttle, honestly)
Thats extremely bad, I have a slight exhaust leak seeing how its welded mostly anyway w/ ZZP flex.
Ive replaced:
-Plugs with AL 104 @.055
-New ZZP 10.3 mm wires
-fuel filter
-PCV
-Front o2 sensor
-Fully syn trans & motor oil
-All fresh coolant, brake and PS fluid
It has a tune on it, 40* of cruise timing. Its not a very accurate tune seeing how the MAF tables are still stock on this 3.4 set up.
Black arrow mentioned to me about the coolant temp sensor could be acting up as a silent killer with no DTCs, Ill check my ECT's with my laptop later this weekend to see if theyre accurate.
I did get a DTC ECT sensor high voltage, then it went away.
Only mods that could affect MPGs really: 180* Tstat & EGR delete.