05 PCM swap Issue(?)

[Sn4tchBandicoot]

I recently did my PCM swap over two days, first day was just the spark plug harness, second day was the full harness. After changing the spark plug harness I noticed a popping sound coming from the passenger side exhaust while driving, most commonly at or above 1500 RPM.

When the harness was built I opted for the 06+ coil pack upgrade as well. The harness was built by someone that works for dodge and has all the wiring diagrams available and we have determined that it isn't a wiring issue. The exhaust smells of raw fuel, so I am assuming that there may be a plug in the wrong coil pack but everything seems to be where it should be, no misfire codes either.

Anyone have any insight?

 

[Sn4tchBandicoot]

Figured it out. Simply had cylinder 4 and cylinder 6 spark plug wires backwards.

 

[HemiLonestar]

That'll do it....the wires or the coil connectors? You did mention doing the coil upgrade...

 

[Redtruck-VA]

Well done..

 

[Sn4tchBandicoot]

That'll do it....the wires or the coil connectors? You did mention doing the coil upgrade...

It was just the plug on the wrong coil pack haha.

The wires looked like they all went to where they were supposed to go based on length but I was wrong.

 

[Sgtgoody]

Is there a write up on how to do this. I have an 04 and I am interested in this thanks.

 

[Sn4tchBandicoot]

There's lots of them out there. Not entirely certain the 04 needs much if anything to do the swap.