Anytime there is a code, it should be recorded.  Maybe there is something
wrong with your code reader.  Hopefully its set to read both active codes
and codes stored in history!?

CL

Hi all,

       About 2.5 weeks/300 miles ago my '03 Forester (US) started showing a
check engine light. I hooked up my OBDII code reader and when I read the
display, there was not code recorded. I thought that maybe there was some
noise in the system, so I used the code reader to clear the CEL, which it
did. Shortly after I started the car the next day, the CEL came back
again with no code recorded. I've started leaving my code reader
connected while I'm driving to see if it can pick up a transient code,
but nothing has been recorded. Some other things to note:

- the car runs great and my fuel mileage is normal

- when I reset the CEL, the I/M readiness monitors were also reset. In
the two weeks or so since then, the oxygen sensor, catalyst and
evaporative system monitors have yet to come ready

- don't know if it matters, but about 6 weeks ago, I had the pistons
replaced under warranty for piston slap. At the same time, they replaced
the cam belt tensioner, cam belt and various seals.

I've done some googling about this, but everything I've found (none of it
Subaru specific) was basically "your computer is fried, buy a new one".
It seems to me that if the computer was actually gone, the car wouldn't
run normally.

Ad<thanx>vance for any assistance...

- Snuffy -

--
Feeding the trolls since 1989.