OBD1 Flash Code 94 Chevrolet 350 TBI: What Does Constant Flashing Mean?
Hi everyone, I have a 1994 Chevrolet with a 350 cubic inch TBI engine. Recently, the check engine light has been continuously flashing when I perform a flash code test. This is happening on an OBD1 system. I'm not sure what this constant flashing means—especially since I'm planning to sell the truck soon and just want to understand the underlying issue. Can anyone explain what a non-stop flashing fault code indicates in this context?
You're likely performing a KOEO (Key Off, Engine Off) test. The system you're working with is OBD1—there was an older version known as OBD1.5. To get accurate results, check if your system uses ALDL (Automotive Local Data Link), which was the original standard for OBD1 systems. A quick search on 'OBD1.5 vs ALDL' will help you compare and confirm compatibility.