1992 Miata: OBD1 or 2?

[6PAK72]

Trying to find code reader plug, and it doesn't look like anything unde the dash matches....

Thanks,

JB

[Mark Swinehart]

Here's how you check the codes in your miata. There isn't a code-reader-jack per-se in the OBD I miatas that I know of. The diagnostics port under the hood is more a set of specific wires in the electrical system to use for specific tests - either to put put the ECU into a diagnostics mode or test certain signals/voltages so you don't have to hunt for them in the wiring harness. Anyway, here's a link to a helpful article:

http://www.miata.net/garage/faultcodes.html

[jeffw]

Since you have a Megasquirt ECU, you have neither

It's a standalone ECU