If you are using an H&S 6.7 EGR Cooler Delete Kit without an emissions removal tuner, you will need to follow a few instructions in order to work correctly.

You WILL get a check engine light using this method.

Do as instructed by the EGR-K instructions manual with these minor changes:

You will need to disable the "butterfly" valve in the intake horn.

  The "butterfly" airflow valve (circled in picture) must be disabled using one of two ways:

     A – Remove the gear assembly controlling the butterfly valve.  This is the recommended method for disabling the butterfly.  Pictured instructions on how to remove the gear.

     B – Remove the two screws holding the butterfly plate to the intake assembly, and remove the butterfly plate from the intake horn.  These screws are not designed to be removed and will often break during the process of removal.

If you simply unplug the butterfly actuator motor, you will get an Eletronic malfunction indicator lamp on your dash (Red Lightning Bolt) and a Check Engine Light.

Failure to disable the butterfly can result in low power, extreme EGTs, and limp mode conditions.

 If you are trying to "clear codes on start-up" you will also need to leave the EGR Cooler Bypass motor connected.  This is on the passenger side of the motor on top of the exhaust manifold.  It has cables connected to it for opening and closing an EGR cooler bypass line.  The C&C trucks do NOT have this part.  This can remain plugged in electronically and zip-tied to the firewall or wherever you would like.  If you unplug this unit, it will throw a constant check engine light that cannot be cleared on start-up.