My good ol 79 has failed the BC Air Care test,
Nox is too high and the EGR system seems to be at fault.
Problem is I cant find any specifications
on the vaccum line or emission control system.
Half the hoses have been removed or plugged.
If anyone has a schematic of the vaccum system
and/or emission control system or knows of a link
that has it, it would be a big help
79 mustang
3.3 litre straight 6
old holley 1 barrel carb
automatic trans.