* OBD Standards Changed: Vehicles manufactured before 1996 typically used a less standardized diagnostic system. Your van likely has a "diagnostic connector" that's not the standard OBD-II connector we use today.
* Vehicle Specifics: Even within a model year, the location of diagnostic connectors can vary depending on the engine, trim level, and even production date.
Here's what you can do to find it:
1. Consult Your Owner's Manual: The most likely source of information is your owner's manual. Check the section on diagnostics or troubleshooting.
2. Look Under the Dash: The connector is usually found somewhere under the dashboard, often near the steering column or to the left of the driver's feet.
3. Check Online Resources: Search online for "1992 Chevy G-30 diagnostic connector location" or similar terms. You may find forums or websites with information specific to your vehicle.
4. Consult a Mechanic: If you can't find the connector, a mechanic can help you locate it.
Important Note: If you're planning to use a code reader, you'll need one that's compatible with the pre-OBD-II system. This type of reader is often called a "generic" or "universal" code reader.
