OBD light on/flashing! Please help
 

I have a 2004 sti, full de-cat system & ECU remap.
started the car yesterday all fine, got up the road OBD light came on, then started flashing and car started to labour really badly with no power. after a few mins the light stopped flashing, but stayed on, car felt normal again?
The car keeps going through this phase static light/flashing and labouring.

Can anyone please advise me of probable cause/solution to this?

after reading some other threads, could be the 02 sensor?

cheers guys.

Paul

I would take it to a garage & put it on the diagnostics just to be on the safe side. De-cats can cause lights to flash too. Hope it aint serious fella. :thumb:

as said you need to plug it in to see the recorded error code(s).

Simon

thanks for the feedback guys, only confirms that the car must go to a garage.
would a subaru dealer fix this fault even if the car is fully de-cated?

Paul

see if they will reset the ecu.. this will clear all learnt data and if it is an issue related to exhaust it may run fine for a short time until it relearns unless it is det related in which case it will be instant.

Simon