Join Date: Jul 2005
Location: Ontario, Canada
Originally, diagnostic computers for OBD1 systems were only found in garages etc. When OBD2 came in around '96, OBD1 code readers were ignored & it's been only recently that you could get OBD1 & 2 code readers/diagnostic tools (that's why Autozone tests '96 and up, they don't have an OBD1 capability). If you're only planning on using the OBD1 element for reading diagnostic codes, you can use the your ignition key and count the CEL flashes to see what the computer thinks is wrong - you can reset this by disconnecting the battery.