Like tittle says... I have a fuel problem with my Evo 4. The car run lean, when acelerate the afr is 15-17 and when stop to acelerate go to 12-13.
I change everything (crank, camshaft sensors.... Fuel pump, injectors, fuel pressure regulator, etc, etc, etc, and nothing happen).

The engine its good, recently pull of the head to check and all its fine.

Change the stock Ecu, and nothing. I modified the rom give it more fuel in the map and nothing.... I was thinking to burn my Evo , I dont know what else can I do to fix it...

Attached a log and video to see what happen with my car, maybe someone can help me to fix that. Mods are in my sign...

Youtube video:

 

Is it tuned? Do you trust the wideband?

 

Yes, I have a new sensor... And spark plugs are white, so its ok the wideband.

Its no tuned but I made some adjust in the map but nothing happened...So its not tune I think.

 

I wouldn't drive it unless it has base map from your tuner. contact the tuner you using and ask them for a base map with all your specs.

 

Theres something bad in the datalog???? Someone saw the datalog?