LB7 Fuel Filter housing harness wiring/Emissions related?
 

this LB7 happens to be one of the emissions built models with ERG/Cat. But I noticed the wiring and junk on top of the fuel filter housing (see pics) that is not present in the non-emissions LB7 models...any one know what this is? Is it related to the emissions in anyway? (I wasn't aware of any other mods other than the EGR and cat if there are any?)

https://www.dieselbombers.com/attach...1&d=1374938830