St205 CEL issues, Random CEL Diagnostic not working Options

[CDUB]

Okay start off the car is a94 st205 jap import with light mods. now my issue is that the Check Engine Light is illuminating after a few minutes of driving the car but i believe it shouldn't be flashing like it is and should come on permanently till the fault it fixed or the ecu is reset? My light will flash a random number of times then go off for a random period of time.(will flash once a second between 2-10times then go off for a random period of time)

Also, i know how to read the codes by bridgeing te1 and e1 in the diagnostics port but when i turn the ign to "on" the cel comes on then off after about 3 seconds like a normal start up.

The car is not acting any different with the light on or off as compared to the last 30XXXkm I've driven it.

The CEL only started happening since it got very cold here.

Anyone have insight on to why the CEL is flashing and not coming on permanently or why I am unable to retrieve codes.

I've tried just resetting the ecu a few times now but this issue is still around

If it helps i can get a video of the dash while I'm driving if anyone thinks it will help.

[TEAMFaint]

Happens to me too Curtis, something about these cars really hates how cold it gets here in Medicine Hat.
Randomly when I drive or start the car the CEL will come on, sometimes it doesnt come on at all.
Tried jumping to test as well and nothing comes up. Some sort of sensor isnt liking the weather, hard to find out which one though..