Tuning DFI in Indiana
 

Is there anyone out there in the Central Indiana or surrounding area that is good at or could help me fine tune my Gen VII DFI???

The car runs strong but it's way rich. I have the wideband so it should be easy to tune. I just need a little direction and some help.

TIA

Running rich is easy to fix, especially with a wideband:

1.) Set your target air-to-fuel ratio table to safe values.

2.) Work on your VE table values until your actual air-to-fuel ratio matches your target air-to-fuel ratio. Lowering the ve values will result in less fuel injected, raising them will call for more fuel.

3.) Operate in closed-loop fueling. Refine your VE values to try to make your O2 sensor correction values as close to 0 as possible. Hint: Use the autocalibrate button on your VE screen ALOT.


3.) Once your actual a:f ratios match your targets, your fuel table is finished, and you should never have to touch it again (until you mod your motor some more). Now you can set your target a:f table to what you (and your engine) want.