CHECK ENGINE light.
MY00. Check Engine light came on last night 
Stopped engine, and will not reappear since.
Took car to dealers this morning to plug into diagnostics checker.
I was told that car was showing a fault with the "oxygen sensor in the exhaust", but as it was not a repeating fault, it has been cleared, and to keep an eye on it.
Common fault, or just a glitch in the system?
Thanks for any help in advance,
Nick.

Stopped engine, and will not reappear since.
Took car to dealers this morning to plug into diagnostics checker.
I was told that car was showing a fault with the "oxygen sensor in the exhaust", but as it was not a repeating fault, it has been cleared, and to keep an eye on it.
Common fault, or just a glitch in the system?
Thanks for any help in advance,
Nick.
Nick
Had the same thing happen to my 00MY, on the way to service. Same fault as your's but my car has a full decat, of course they blamed that!! Was told the same as you, keep an eye on it.
Glen
Had the same thing happen to my 00MY, on the way to service. Same fault as your's but my car has a full decat, of course they blamed that!! Was told the same as you, keep an eye on it.
Glen
Thanks Glen,
I have a different BB, but apart from that the exhaust is standard, with both cats in.
Guess it would be difficult to claim on warranty, with a non-standard exhaust, if it appears again?
Nick.
I have a different BB, but apart from that the exhaust is standard, with both cats in.
Guess it would be difficult to claim on warranty, with a non-standard exhaust, if it appears again?
Nick.
Hi guys,
I got a '92 wrx, and my check engine light has come on three times in the last two and a half months, for no apparent reason and with no noticeable difference in the engine after it has come on. I took it to local dealer who plugged it in and he told me it was the 02 sensor....and my car was running on a '94 ecu..... then opened the bonnet to find i havn't got one!!! Im getting the impression its some sort of glitch with ecu?? i dont know if mines been reprogrammed, if it has maybe thats got something to do with it??
I got a '92 wrx, and my check engine light has come on three times in the last two and a half months, for no apparent reason and with no noticeable difference in the engine after it has come on. I took it to local dealer who plugged it in and he told me it was the 02 sensor....and my car was running on a '94 ecu..... then opened the bonnet to find i havn't got one!!! Im getting the impression its some sort of glitch with ecu?? i dont know if mines been reprogrammed, if it has maybe thats got something to do with it??
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