well I have logged and logged my car, tried many different tunes and just can't seem to get rid of a odd problem. My car doesn't always do it but about 50% of the time it will just shut down in a WOT pull anywhere from 5700-6500, it moves around but never below that. nothing shows why logging it with datamaster out of the ordinary, I have a wideband in the car and it does not go lean. Anyone have any suggestions? It just shuts down like fuel cut off or something, quickly regains, but it is very aggravating, any help will be greatly appreciated.

 

Poor electrical connection??? Although you wouldn't think it would appear at a particular RPM though. I have seen the battery flop back and momentarily ground out the positive post. Though that is usually at the beginning of a "heated" run. Is your battery loose like most folks?

Maybe you could try wiggling some wires while it's idling to see what happens.