Ive got a 2001 7.3. I have a contribution code for cylinder number 8. I know the mysteries behind number 8 and that code but I can feel a misfire in the truck so i know its actually a problem not just a cps, which i have the newest blue one installed.

My question is can i take number 8 and put it in say number 6 location and 6 into 8's and run another test to rule out the injector being a problem? Ive heard some people say it needs tuning to run an AD into number 8 but Ive also heard you don't so i just wanted to make sure this wont hurt anything if i do it.

 

Shouldn't hurt it to do this. Just change it back when done. My number eight went bad on me years back. You could really here it next to a wall or in a tall parking structure. Changed it out with rebuilt and my problem was solved.

 

Well I made the switch today. The contribution code disappeared with the AD in number 8 and the AE in number 6. Still have the same shuddering at certain rpm with it but the contribution code is gone