Bought a PFC used. I reset it back to factory map. Let the car run for 10 mins to learn the car. Now it drives but I cannot go above 4k rpm and sure as hell cannot go full throttle.

 

Is your car stock?

 

Sounds like it could be an issue with your secondaries not coming on.

 

It is mostly stock yes

What would cause the secondaries not to come on?

 

Fried injector driver

 

And to fix that.....?

 

Needs to be sent to Apexi. This is the risk and drawback to buying used electronics. Do you have any friends that have PFCs installed that you could swap with for testing? What was the injector setup on thr original map?