misterp Posted February 17, 2007 Report Share Posted February 17, 2007 (edited) Hi all, I've broke out my copy of LS1Edit and am looking at the "Engine Test Parameters" dialog window, there is a checkbox labeled "COT Enabled" and it is checked; also, the cat overtemp thresholds degrees table has the following entries: 1st threshold = 905-C 2nd threshold = 915-C 3rd threshold = 925-C 4th threshold = 975-C Now here's my question, I have gutted my cats a long time ago - if I disable the "COT Enabled" checkbox will I increase MPG on the freeway? Or is it already configured in such a way as to have the COT enrichment non-functional as-is? Mr. P. Edited February 17, 2007 by misterp (see edit history) Quote Link to comment Share on other sites More sharing options...
Bowtie70SS Posted February 17, 2007 Report Share Posted February 17, 2007 COT was explained to me as adding extra fuel which in turn cools the converters. It's a fine line between cooling them and the extra fuel causing them to overheat. I have my COT disabled since my converters are gutted . Dave Quote Link to comment Share on other sites More sharing options...
misterp Posted February 17, 2007 Author Report Share Posted February 17, 2007 That's what I'm thinking, that I'm just throwing fuel away... Quote Link to comment Share on other sites More sharing options...
Holty Posted February 17, 2007 Report Share Posted February 17, 2007 mine is disabled also. Quote Link to comment Share on other sites More sharing options...
wait4me Posted February 20, 2007 Report Share Posted February 20, 2007 In simple words. IF the cats are still on, leave the Cot protection on. If the cats are not on, Turn it off and dissable the cat codes and rear o2 sensor codes and be done with it. The reason for the ability for you to tune the cot thresholds on Temp is to make up the difference for Aftermarkt highflow cats. ALSO there is an AIR Fuel modifier that modifys the commanded air fuel ratio when the pcm is various Cot Modes. Come Cats require different amounts of fuel to be added. Quote Link to comment Share on other sites More sharing options...
misterp Posted February 21, 2007 Author Report Share Posted February 21, 2007 In simple words. IF the cats are still on, leave the Cot protection on. If the cats are not on, Turn it off and dissable the cat codes and rear o2 sensor codes and be done with it. The reason for the ability for you to tune the cot thresholds on Temp is to make up the difference for Aftermarkt highflow cats. ALSO there is an AIR Fuel modifier that modifys the commanded air fuel ratio when the pcm is various Cot Modes. Come Cats require different amounts of fuel to be added. Thanks I'm figuring out slowly that my tune has more than a few sins in it. Mr. P. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.