Originally Posted by Davin

Hi all new to the site, I have a 2003 Chevy SS 6.0 Whippled with headers, cats and full exhaust, K & N. Truck is running fine but not registering for emissions. I have been talking with Mike ( much help and thank you.) . Still at a standstill, the truck as now at the chevy dealer which was done to verify that the ecm was not reprogrammed and it's not it's stock. I bought this truck used need to create a baseline to figure the problem out, in the process. Truck was not registering high enough water temp. according to GM to release the emissions, so talked to Mike and was told the whipple kit comes with 160 t-stat mine is reading 177 on the computer, replaced t-stat back to a stock 185 released that but still not emmisions release. Mass air flow is registering to low also, checked part # with GM they said that it doesn't match what's suppose to be in there, checked with Mike said the whipple kit calls for no mass air flow change over stock. I,m probably going to change the mass air flow on monday but I'm just not confident this is going to help. Anybody have any ideas, the truck is not throughing and codes or lights!!!