Cat or no Cat - Page 2

**BigRedChevy** · 09-05-2008, 08:12 AM

Yeah, i really don't know about the testing in texas. We're not doing any testing right now in KY but we might start anytime. I kept my cat in storage for that very reason.

duramaxchris06 · 09-05-2008, 10:29 AM

Quote:

Originally Posted by BigRedChevy

Well with the LBZ's there is a 50/50 chance that it will set a code and SES light. Most of the time it will happen after a hard run. There are ways of blocking it though. You could do a programmer that blocks the code. (diablo, quadzilla, PPE, ATS, EFI Live) If you don't want to do a tuner then you could install a "fingerstick".

correct me if im wrong, but i thought that the duramax's with FE9 Emissions wouldnt throw a code or SES light if the cat is removed...??

**BigRedChevy** · 09-05-2008, 01:04 PM

That is true for the LLYs, but some of the LBZs even the FE9 emissions will illuminate the SES light for the code. It mostly depends on the conditons that causes the code. My cousins truck will set the code and no light when daily driving, but when he runs it hard like at the race track it will set the light off.