Noticed that my OTC Nemisys won't communicate with a Chevy 1991 G30 van or 1989 vette...it communicates with my buddies 94 K1500 no problem. The OBD1connectors have different pin outs...anyone run into this problem?
Anyone with a OTC Nemisys:
Since I upgraded my OTC Nemisys cartridge neither the internal or external power source indicators light come on. The unit still works...also having trouble communicating with the OBD1 vehicles noted above..is fine with OBD2.
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