NightmareH4 Posted March 7, 2009 Share Posted March 7, 2009 I have an 05 lgt, I replaced the stock dp with a non catted dp from invidia. Shortyly after i did so the cheak engine light came on and cruse control flashes. I<3 my crusie control. But im pretty sure this is because the O2 sensor in the dp isnt reading correctly because of the new dp. I maybe wrong. But if any one knows why this is happening and how to fix it that would be great. thanks Link to comment Share on other sites More sharing options...
NSFW Posted March 7, 2009 Share Posted March 7, 2009 Same thing happened to me even with a catted Invidia. It's probably this code: http://www.obd-codes.com/p0420 You can disable that code with RomRaider and a Tactrix cable. Maybe with an AP + their tuning software (which is free now) but I'm not sure. Link to comment Share on other sites More sharing options...
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