Check Engine Light??? - Hyundai Performance Forums

Wilseya · 06-03-2003, 02:05 AM

My sister has a '03 tiburon GT with an AEM CAI and we have removed the second cat and swapped out both of the rear mufflers. But every once in a while the check engine light will appear out of no where, but if I disconnect the Battery the light will go off for a couple of weeks... What could be causing this problem, just out of curiosity?
I really don't want to take it to the dealer because I am affraid of what they'll have to say about the intake and exhaust work. Any tips will be appreciated.
thaks- nathan:surprised:

**Red_AGT** · 06-03-2003, 02:38 AM

Most likely because you removed the cat. You might be able to get someone else to read the codes for you then you will be sure what the problem is if you don't want to take it to the dealer. I think some places may read codes for you.

tibbyguy99 · 06-03-2003, 02:50 AM

autozone does it for free :rambo:

**Red_AGT** · 06-03-2003, 02:59 AM

Oh.. I didn't think that Autozone still did them for free.

Acid7711 · 06-03-2003, 07:07 AM

Quote:

Originally posted by Red_AGT
[body]
Oh.. I didn't think that Autozone still did them for free.

[/body]

The one around my place did them for free just a few months ago, except they claimed not to have the right one for my car :hmmm: No matter. I just got pissed at mine lastnight and ripped the bulb out because I know mine will never go off, because it doesn't look like I'll be buying a cat anytime soon

Voiddweller · 06-03-2003, 09:00 AM

Do you still have all of the O2 sensors connected? That will throw a CEL.