ECU codes

[MyFirst240SX]

I have treid to get my ECU to throw codes for me and all it does is Blink once, then twice then three times then 4 times then 5 times.
i have a Ka24E is the process any different for this engine?
sean

[MyFirst240SX]

does 55 mean nothing is wrong, i can't rev my car past 5k rpms......