[Oh Haha]

You should consider joining Rennlist as well. They have a great bunch of guys that really know the 993. Apparently, you DON'T need to join to search.


I found several threads but I can't copy the link to here.

A post I pulled from a thread.-
A F-L-A-S-H-I-N-G CEL light is usually triggered by an engine misfire. The FLASHING is literally to 'grab' your attention - as this is 'serious' and pretty much seals the deal that you need to STOP and SHUT THE ENGINE DOWN.

When the CEL comes on - and stays on - you CAN drive it. You have a choice of:

i) Letting the ECU 'solve the problem all by its lonesome' (which it will do if it 'senses' that the condition(s) that triggered the 'error' do NOT occur over several subsequent drive cycles). READ: The CEL will switch off all by itself.
ii) Having the code read (OBD 'reader') and the condition 'cleared'. This, as we all know, will RESET all those pesky 'readiness monitors' as well as turning the CEL light off.

It REALLY is worth 'investing' in a decent OBD code reader so that YOU can decide whether this is a 'transient error' (e.g. loose gas cap) or something that infers 'maintenance required'.