any one know wht will cause the engine light on...
the yellow one!!!
my one on until now never go off....
even turn off the car!

 

Take it to a dealer .. they can read the code.

 

i have take to dealer but they cant totally reset it too....
they reset it...
a while later comes on agagin..

 

Take it to a different dealer (if you can) and have them read the fault code, diagnose the issue and fix it. Ask them what the code is ... you can then look it up yourself (there is a thread in the Tech Garage) which lists all the fault codes.

Is the engine behaving differently? Have you got your fuel cap on tightly.

 

Have you check the O2 sensor in the cat... last time you said they have play with that.

Make sure they are connected then reset the thing by unplugging some fuse...

Gimme your fax number in the P/M (even if you are in HK?) I will try to find in the service manual and fax it to you. Are you still in HK? or in Aus?

 

i still in hk...
i will back soon meet up then talk la..

 

Yeah, probably an O2 sensor... mine has come on once, but went away on the morning I took it to the dealer... they found nothing wrong and it hasn't come back since. But yeah, get it to a good service department asap.

 

Did you play around with your wiring??

The dealer will read the codes on the WDS then reset it (it happened to me). If it comes back on ask for a new RX8 (lolol):p

 

my engine light was also caused by a 02 sensor issue.

 

wht would cause the o2 sensor faulty.....
so wht problem will come out and how to slove it,,,,,

 

All this is speculation without the fault code. If you can get the fault code you have a fighting chance of working out what to do about the problem. Without the code you're going to go on a wild goose chase.