Obd1 continously flashing

[2.8 Bird]

Hi guys, I'm trying to help a fellow fbody v6 owner who has a 93 bird with an obd1 and has a ses light on. Once the scanner is plugged in the light continously flashes, instead of it giving a specific code or codes. I wonder if this is something serious.

[ssms5411]

Don’t really know too much about OBD1 but on OBD2 it means bad misfire and need to get serviced immediately.

[2.8 Bird]

Hey Steve, I have a feeling it might be a misfire, but the car doesn't sound like it. It could be cat related.

[ssms5411]

Yes Cat related also , means get serviced ASAP.

[LETZRIDE]

Isn’t there specific scanners for obd I computers? Is yours compatible?

does the light flash with the scanner not plugged in? Are all the ground wires good in the car and to the port?

[LETZRIDE]

Have you tried reading the code like this instead of through your scanner?

https://www.obd-codes.com/faq/read-g...codes-free.php

the link in there has the trouble codes patterns as well

[2.8 Bird]

Yeah, obd1 usually gives out the code in 2 digit numbers once you plug in the scanner. I had an 86 fiero. So I was familiar with it, but this guy's bird just continuously flashes without codes. So I figured this is way more serious.