I replied to the following thread https://dodgeforum.com/forum/dodge-c...need-help.html looking for more help, and no replies so I am starting a new thread.

Is it worth the time to replace the spark plug in cylinder 3?

Should I go ahead and replace the wiring harness from cylinder 3 to the big fuse box under the hood?

I just don't want to take the time and spend the money on parts if this will not fix the problem.

Check engine light is on, its running like crap, and sometimes I can smell fuel as if there is a fuel leak. Key dance is showing P 0203.

 

Model year and which engine?

You want to inspect that wire harness before changing it especially if you have a 4th generation 2001-2007 van. The wire controlling the injectors runs to the PCM not the fuse box.

http://www.obd-codes.com/p0203

 

2004 Anniversary Edition with 3.3. 275,000 km's. Good to know that it runs to the PCM