engine check light; wat's wrong?


moon* what is the exact model of your car?

to resolve any confusion have a look see if you have an o2 sensor behind(after) the cat/de cat pipe,if you dont then it rules out the problem being with a secondry o2.
 
eh.. actually;i havnt seen my car with the CAT b4, when i got it. its was already decat with another extractor; after i got it, i replaced it again

n i m have a b16a engine (OBD1) from EG series on my EK.

here's the pic.
 
ok,, but is there another sensor anywhere in the exhaust other than the one that goes in the place in your picture?
 
His motor is an OBD1 16A...so it will not have the secondary O2 sensor.
 
nope.. tats the one n only sensor :)
n i've tried changing few of the o2sensor n the lights keeps coming ONCE in awhile.

so i tink i should jst let it be, since its not always effecting me, i hope
 
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