Only 11 codes! 31 32 33 35 41 42 43 51 52 54 55. I'm glad I bought a ODB1 capable scanner, lol. INNOVA 3170RS, It can even do smog tests on newer vehicles and it has a internal battery, so I can scans codes, save them, and take it inside to read up on them.
There's most likely a rebuild/swap in...