Service emissions after tuned

Raskw99

New member
Jun 21, 2022
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1
I had service emissions come on last year. Purchased and installed efi live with 4” exhaust with cat delete. Everything was good and running fine. I did not remove the def tank at the time. Just removed it today and saw the wiring harness on top I didn’t disconnect previously. I disconnected today when I removed tank. Now getting service emissions again. Tried to install full tune again but won’t get rid of it. Any help appreciated. Thanks
 

2004LB7

Well-known member
Dec 15, 2010
3,934
405
83
Norcal
return it back to stock. reattach all emissions equipment and tuning then we can help you figure out what's going on. with unknown tunes, removal of emissions equipment we have no idea what would cause it. we also don't condone emissions deletes around here. you can do it but don't expect much help from us to fix issues related to that
 
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