F001128 JDM

Anyone know what’s going on here?

1998 Toyota Aristo V300
Bone stock GTE engine

Drop In K&N Filter
HKS SSQV BOV
HKS FCD&SLD

Can’t find anything about this code, I’m an automotive diagnostician and I have never seen an F code, but I also only work on new cars haha, Alldata nor TIS have any information, can’t find much on Google for F codes as I don’t think they exist? Maybe, I’m not sure to be honest- I’m not sure where to start diag’ing. Second the code pops, car goes into limp mode