The 1986 has ECM 1227165, using Definition $32

Gearhead-efi link for 1986 Corvette computer information: http://www.gearhead-efi.com/Fuel-Inj...Information-32

The link has TunerPro files specific to the 1986 Corvette. TunerPro RT is used to data log engine information, to be used for tuning.

OBD1 tuning is somewhat cumbersome compared to OBD2 tuning. MAF tuning does not have as much tuning support like the TPI Speed Density (MAP) systems.

dave w