Quote:
Originally Posted by rmay635703
No offense but if it was easy I would have retuned my 3800 98 buick to run lean on the highway,
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EFI Live, Hp Tuners, AFC 2.0, to name a few. A U-bend delete should improve your power and mpg a bit. There is ALOT to be done to that vehicle. A WB02 with adjustable output ($200-up) should have gotten you somewhere with no tuning at all. That plus a $80 Alex Pepper scan-tool could have showed you all of your numbers, but not allowed you to change them.
To the OP, I think that checking your intake manifold and getting it cleaned if needed, or looking into water injection would help you out a bit. The re-flash would be good only if the company was good.