You need to find out what code was thrown that activated the check engine light. It could simply have been that you turned on the key when one of the coils were disconnected. That would throw a code unless you disconnected the battery first. Did you disconnect the battery when you changed the plugs? Removing the coil connection might throw a code if the battery has not been disconnected before removing the coils to change plugs.

 

Thanks for the reply...no, I didn't think about the battery disconnect. That must be it.

 

Dont run platinums. They cause lots of issues on the Hemi. Get copper plugs.

There is a lot of posts out there for this common issue.

 

Checked the code causing the light..."Intake Temp High"...hmmmm. I'll have to check my re-installation of the intake assembly.

 

Idiot check SAT...didn't snap the intake temp sensor connector back in when I re-installed the intake and air box. I wasn't looking for it and couldn't see it when I put the whole assembly back in...lesson learned. Light's cleared and running great. No issues with platinum plugs.

 

I am happy to hear to that.