ECU Code Help (PR4?)

so tonight my car started acting up, start to kinda mis fire up at 4 grand then it was fine after that, took it out for a rip up and down the road quickly by my buddys house, pull it into the driveway and the check engine light comes on.....
lift up the carpet and it flashes 4 times slowly, like the light stayed on for a second each flash, then it flashed 3 times rapidly right after and kept doing the same 4 slow, 3 fast pattern..... i'm running a 90 teg GS ECU (think its the PR4) what is the problem with my car? lol

but it was weird, drove it home and it was fine?!? i dont get it

fuel pressure is either too high or too low....
do you have an aftermarket fuel pressure regulator or something that that u are using to turn up the pressure? If not, there is either something clogged in your fuel system namely the lines, or filter, fuel rail, etc.
I think ur ecu will start throwing the code after you turn ur car over 48 psi at WOT...
I'm running 55 psi at WOT and i run with the code all day...

i dunno, it only happens at 4 grand, started again today
picked up a civic and teg fuel filter, gonna try the teg first and see if it fixes the problem. and no i have the stock pressure regulator, but its working fine

well i threw in a new fuel filter yesterday for a 90 - 92 B18 Teg but it didnt seem to help, so it wasnt a clogged filter, i'm gonna try and throw my PM6 back in and see if it fixes the problem

anymore ideas let me know