2 step on fuel injected cars

[art leong]

I bought a seperate 2 step for my car (coil over plug system). Before the ECU manufacturer had the firmware done.
It worked just as stated cutting off the spark randomly. But the ECU was reading WOT and not doing anything about the fuel in conjunction with the spark.
My oil was fuel fouled in 2 passes (looked like it had thousands of miles on it). I was pressurizing the crankcase and pushing oil out everwhere.
Now my ECU manufacturer has finished the firmware. Got rid of the seperate unit. It works great no oil fouling or pressure in the crankcase. I can hit the button and hold it for a minute or more with no ill effects