Cold Nitrous Systems

Next, we're going to be showing you a 4AN 25 PSI fuel safety switch. We have a 4AN 25 PSI fuel safety switch. Items needed is going to be some pipe thread dope and two crescent wrenches. Now we've taken the 4AN 25 PSI fuel safety switch out of the package. As shown here, t How t Once you've hand tightened the adapter onto the fitting, you will need your wrench to tighten up the adapter. Note, you may have to take your nitrous and fuel solenoid off to tighten up the 4AN adapter firmly. After your 4AN adapter is firmly tightened on, take your Teflon paste, apply a little bit on your 25 PSI fuel safety switch. You will then screw your fuel safety switch onto your 4AN adapter. Take your wrench afterwards and tighten it up. Wrench tight. After installing your 4AN adapter, you're going to need to return your fuel line back to the adapter. Always remember to tighten up the fuel line after installing the adapter. After installing your fuel safety switch, we're going to install the electrical side of it. What we're going to do is cut the wire between 85 and the micro switch. We're going to install the fuel safety switch in between the two items. So you will run your wire from 85 to your fuel switch, and then from the other side of the fuel switch, you will go to the micro switch.