Finally a solution to CEL 4, 8 and 9 on OBD1 ECU!
 
This replacement board with identical specs to the "NY1-CG" board installed at HIC-1 location on P06, P28, P30 and similar ECU, allows to fix issues related to TDC, CKP and CYP signals that could appear even if distributor works fine.
 
No need to source it from another good ECU, or to deal with stock HIC-1 floating-style pins that are hard to keep intact, this should make the job a lot easier!
 
Compatible with all P28 equivalent OBD1 ECU.