engine light on and won't turn off!!
 

hi just wondering if anyone knew what i could do with this problem,

my 1999 audi A6 check engine light turned on awhile ago and i had my cat. converters replaced, but they were not audi parts because they were more expensive. the light is still on and dealerships don't know why, any ideas?

Re: engine light on and won't turn off!!
 

Check the emission/oxygen sensors maybe?

Re: engine light on and won't turn off!!
 

Is the light blinking? If it isn't, then the problem isn't that urgent.
Personally, I would do the VAG-test by my self, I wouldn't trust the dealership. Check the whole engine, if it doesn't find anything wrong then just erase the engine light.

Re: engine light on and won't turn off!!
 

have you checked for any errors? Is it possible for you to have the computer reset? maybe it has trouble dropping an error code...

Re: engine light on and won't turn off!!
 

why did you change your cats? were you running shitty gas? clogged cats could result in ****ed oxygen sensors.

Re: engine light on and won't turn off!!
 

true, could be the oxygen sensors gone bad....

Re: engine light on and won't turn off!!
 

my light went on about a year ago for the first time, them went off, then on , my mechanic has assured me that it is ok to drive with and have located the problem to the temp sensor which is on order for the next servcie.