everytime i REV and hold it at 4800-5000 RPM it boggle and check engine goes on. anyone know what the problem is?

 

yoru check engine light can tell you once you take the time to see what code it is throwing.

 

i just got this cintroller today and installed it. I had a couple engine codes due to the cheapo plastic splice pieces that didnt made good contact with the wires. I took off the those splice pieces and made sure there was metal to wire contact and it took off the codes. oh yeah when you have an engine code the ecu puts out a rev limiter lower than normal to protect the engine and once the code is gone the low rev limiter is taken off.