'93 - Nonstop flashing CEL when reading codes (1 Viewer)

[zweisman]

Hey guys, another issue -

I jumped the diagnostic pins earlier today to read codes, got them just fine, (42, 83, 84, 85). Went to clear them by removing the EFI fuse, put it back in, rejumped E1 and TE1, and now the CEL light just flashes nonstop sort of rapidly. Anyone ever seen this before?

 

[jonheld]

Hey guys, another issue -

I jumped the diagnostic pins earlier today to read codes, got them just fine, (42, 83, 84, 85). Went to clear them by removing the EFI fuse, put it back in, rejumped E1 and TE1, and now the CEL light just flashes nonstop sort of rapidly. Anyone ever seen this before?

You cleared the codes by removing the efi fuse. A rapid flash is no codes.

 

[zweisman]

Thank you so much!

 

[LandLocked93]

But don't worry, 83, 84, and 85 will return. If you aren't having tranny issues, just ignore them.
They are 'ghost codes' and remnants of a bad ECU/TCU coding event from the factory, IIRC.
I've had them since purchase 5yrs ago and they are 'normal' for 93/94 models.