i was on the motaway today on my way back from PE rolling road an was haveing a bit of fun with a motabike when i noticed that the check engine light had come on there was no loss of power no funny noises and it was going fine so i pulled overhad a look under the bonnet couldent see any thing wrong started it up again and the light had gone out. drove it home and it never happend again any idears ehat it could b

 

Do you have a new age or classic shape car? If the latter, you can join together the black "read memory" connectors under the steering column and find out exactly what caused the CEL.

Much better to know than guess

 

its a sti 5 type r

 

I have exactly the same on my MY95 WRX, but it only ever happens at very high speeds (120mph +) with my foot flat to the floor. I've been told it's the lambda sensor on it's way out and no real cause for concern

 

this may seem daft but what does this light look like?

 

I'd guess lambda sensor also.

 

I get the same appear but when I first turn the key in the ignition. It goes out as soon as you turn the engine over. I've tried leaving it for a couple of minutes before starting to see if it goes out, but it doesn't. Is this cause for concern?

 

It's a light on the dash that says "check engine". When it comes on mine I've often opened the bonnet and the engine hasn't fallen out so I assume nothing is wrong

I think it picks up error codes from the ECU so the light can come on for a number of reasons.

 

CLANDER - that sounds perfectly normal

 

If you know someone who can read the codes (cheaply!), get it done. If it's the lambda sensor the engine will run fine but you could be wasting huggins of fuel.

 

i had been excelerating hard up 2 about 140mph had done this about 4 times before i noticed the light perhaps something was getting 2 hot. ps car ran 287BHP and 264LB of torqe on the rolling road the i need 2 get rid of the cat as its holding it back

 

Cheers Scooby96, should the oil light also stay on? Or am I just worrying unnecessarily..

 

Subaru Error Codes

hope this helps